Don’t think that publishers will see poor sales figures and think “Well, that’s what happens when we don’t optimise our games for PC! Maybe we’ll optimise next time.” You’re kidding yourself. Poor sales figures on PC are poor sales figures on PC, end of story.
I don't understand this mentality. Basically he's saying that companies are unable to figure out the reason for a game having poor sales. This doesn't make sense, as this particular company followed the internet enough to recognize the demand was there in the first place. So this idea they have a blindfold on when it comes to the internet seems excessively silly.