I think it can be for having the hype up, or something with other routes that had to be added first in order to make Torahiko's route worth, like a history plot or whatever that it needs, I guess its the second one.
yeah i kinda get it but at this point it wont get anymore popularity by making us wait for tora route honestly rn amount of players decrease if i am not wrong
I read it a year ago the devs said something about Torahiko will be the last route to be developed since his story requires other character routes to be finished first.