The way Aya's route is developing feels rushed to be honest. 90% of what there is of it got written 1 year ago and no new development was made until recently. In all the old content there's no indication she will get fucked by mr chad thundercock (unless we apply meta knowledge), but then suddenly, in just a single update after the long wait, they are already fucking. The way it happened is also far dumber and more contrived than how the situation with Laura got constructed.
Anyone who ever started writing something, stopped midway, then attempted to pick up again years later knows how hard it is to recover the spark. The priorities, mood, mindset and level of interest in that particular story which you had at the time might be totally different from now.
Although I could be wrong, I do get the impression the developer is simply getting this over with at this point. That maybe at first he had something meticulous planned for the Aya route, but over time lost interest in it, and now is finishing by ''obligation''.
Would be understandable but unfortunate.