I'm not sure Milking is the proper description, considering that even from the very beginning he was honest about that this gona take for a long time. even The very early estimates from him was around 14 -16 episode, wich later went to possible 20 .
If he works 4 more years on this project then that is around 7 Year full development, which is almost a proper triple A game development time, and they have 10-15 hour of gameplay may be less, because lots of them are cutscene

So If and When, the game is fully finished, it has the potential to be beyond 30 hour at least of "gameplay". I almost Envy those peoples who in the future gonna play this for the first time, from beginning to end.
It's gonna be a phenomenal experience.
I remember how amazing was for me, when I started, it was before episode 3, I played the first 2 episode just before days of the release of episode 3, then I re-played all the 3 episode.
Since then, I played from the start not once , I once lost all may saves, and I redo everything from scrach, it was amazing
although our experience has the benefits of being part of a Fandom, during the long down times.
