Well it was quite clear quite a while ago he would not change either Deb or the mc for that matter and wants to tell the story as he wishes, I suspect most have accepted that even if they are in the camp like me that still hate the actions Deb took in the game and how much of a selfish hypocrite she is due to that setup even if she may have had some reasons
.
One consequence of that though is that it will be quite hard for him to get a lot of players along on a route where Deb has a truly happy end with MC or she can redeem herself in their eyes (bit late since there has been no changes in her actions that shows us she wishes to redeem herself and change her opinions on her actions), since quite a lot of people will not see that as a possible happy end for the MC ending up with Deb in his life as she is as shown through her actions as opposed to her words.
Then again I do not know if dev planned a happy end for Deb or MC in the first place as they have been set up and neither has grown basically in game and it will be a bit late to have an 180 on Deb this late in proceedings, with her having shown no improvements in either her actions since game started or way she perceived what she did in past as maybe not so great and keeps repeating same patterns. As is she does not feel like either a LI or a wingwoman you can trust if play as a male MC to also take your interest into account at least (which is not the same as having to be led by it completely, but she disregards it more or less completely at every opportunity
) )