DPC already "upset fans" with AL so we know they're not above doing that. My issue with this whole "listen to the fans" stuff is that they will change a character's good ending to a bad ending because there's a perception that they are unpopular and some "fans" have spoken very harshly of them, and that, in my view, would be wrong.
Whether it's M&J, or Quinn, or anybody else, if DPC has planned for them to have a good or good-ish ending, then he shouldn't change that on the basis of a few special render polls and venomous comments from a vocal few. It's like when Star Wars introduced Ahsoka Tano in the Clone Wars series; she wasn't very popular at first and she's now one of the most popular Star Wars characters, but had Lucasfilm listened to that early criticism and got rid of her then that might not have happened.
I don't think you oppose what I say, I think we're just saying it in different ways and each trying to clarify our stance as clearly as possible, hence the back-and-forth.
There will always be people who don't like how things end or how they play out, but there will always be far more who continue to support them. I disliked all but one of the latest Star Wars movies since Disney took charge (the one good film being Rogue One), but I am still a Star Wars fan who buys the merch of the parts I like, reads the comics, and watches the shows. Some people say they are "done" with Star Wars after those films, but I'm not even though I didn't like them, and some people might one day say they are "done" with this game and with DPC if he does something they don't like, but plenty of others won't be "done" and he'll still get support.
In the end, what I hope is that the lesson DPC has taken from AL is to always have the option to avoid a character having a tragic ending. I remember playing Dreams of Desire the first time and (SPOILER) Tracy got killed near the end of the game. I was like, "WTF?!", but then I found out I made a wrong choice earlier and when I went back, this scene had a better outcome. Similarly, I only got one character ending the first time when I wanted the harem ending and found out that that too was because of certain choices that I then went back to do differently. Therefore, if there is a bad ending for any LI or even a side character like Quinn, it should be avoidable by being based on making the "right" choices, unlike AL where it was unavoidable no matter what you did.