Maybe I'm wrong but I think there hasn't been any rework so far. Ocean said some time ago that there would be one (message that is included at the beginning of the game) and we'll see it in the next update but that will be the first rework&rewrite he does afaik so I don't know why you say "has been plagued with reworks and rewrites so often"
By reworks I was I don't mean the whole thing, reworks can be small things as characters or changes to em, Miru he had issues with her hair so he changed that before iirc. His camping trip before iirc had a long time because he wrote it out and had renders for it and then scrapped and started over, it is something he himself said before. So that took time. We did not see what he had back then we just had to wait for it. So technically already a rewrite for that situation.There was going to be a full dom route for Katie but that had to be changed because of when he was writing 0.6, When he was working on 0.6 He himself said that now finally he was done with the camping trip ( again that took a long time to finish because of making and scrapping ) he said he finally can work on 0.6 and he should be finished faster without losing his sanity or something along that line. In Jan he said he was 45% done with the update for 0.6. We got 0.6 from this writing on a month and a half ago.With upcoming full rework the camping trip will be redone and rewritten again.
There were some issues he had though that did a bit of hindering, like him getting food poisoning.
He himself admitted to when he was making the game he did not exactly know where he was going with it until he started on 0.5 and so its from here where the big rework idea has come from, He also wanted to do everything in UHD/Full HD.
He wrote 0.5 ( released September 2019) with the idea of that separating in 4+ different routes in mind this is where he knew where he wanted to go with the game. With 0.4 ( June 2019 released) was where the pregnancy idea came in to play.
The original idea was, 0.5 and 0.6 update was going to focus on the start of Leia AND Helen's route, Start of Miru's Story, Preparation for school infiltration and the pregnancy consequences, this all was the plan and the focus for 0.5 and 0.6, this was what the plan was after the release of 0.4. The camping trip was to last 2 days having it's own 4 routes and followed by the rest of that story, so when the camping trip was finally done and released these were the routes in mind. So working on his early 0.6 he already had to scrap that to rework the whole system to go with the current story we are heading now, there was no court system planned there was non of that MC having ptsd prison stuff going that we currently got and etc. So 0.4 all the way to 0.6 has already been plagued with rewrites, reworks,re renderings.
If you played the update we got which I am sure you have, there was no Miru, there is no talks about school there is however Leia that part is given and it is a damn good one. So longer story shorter, the initial idea's and such have been scrapped. That is why 0.6 took so damn long before we got it 9+ months AFTER 0.5. And we did not even GET the full rework we only got the LAST bit of it with some stuff cut out to avoid wtf moments which will be added back in on the next update... hopefully.
It was in talks already back before 0.5 that after releasing 0.4 he was going to release the game in smaller parts so that we would get releases in 2 months max. While all that was taking place we got SG on Jan 2020. So he was also working on a different game no one knew about.
I am not bashing him or calling him out to be a liar or whatever, He has a good game and a good story and both games have some awesome renders and what not, I am not even denying those. But the fact is and remains that after 0.4 of this game it has been a bit of a clusterfuck. The 0.4 update was the prison update and let us be completely honest that update was VERY short.
The early rework that you mentioned was the starting rework with the new Miru followed by a renewed Hellen ( just the characters and the start of the game being changed a bit ).
Now given how long it took and we only got half the 0.6 without the 0.5 being reworked he even delayed some of his work here for SG when it came to renders, SG has as far as I know more then 1 person working on it. Regium made some renders there and those Renders are also now getting reworked by Ocean. So even there we are getting reworks.
PS : Again not bashing not being negative just being honest about the situation and my opinion, I respect Ocean's work and the fact he is open to communicate with his followers/fan base and such, these are also important to have. I know reworks are meant to make a game better and in the long run to make for smoother transitions and story. But like I said that has not yet been the case here.