I honestly feel this doesn't even need to be justified.
Yes there is prejudice, yes there was potential. But they fucked up. They took to long to fix the game (still not fixed yet), took too long to release finished, leaked, on-disc content. The fan base moved on, you can't expect people to stay hopeful for a game for half a year in the state it was in, an unfun state. And you expect people to get back into the game half a year later when they've been frustrated to death and burned by their purchases?
Not happening. People who stuck with SFxTK shouldn't expect this either, you would need a miracle and a half to rebirth this game. This shouldn't surprise anyone, not even Capcom. I legitimately wanted SFxTK to succeed because it set a precedent for levels of content in a Capcom game where their competitors have been gaining ground, but then it failed on multiple levels and became a poster child for Capcom's fuck ups this gen, all in one game. Capcom knows, Sven openly answers "y duz SFxTK suck" questions. I just hope they don't scale back their future endeavors because of this.