Quote Originally Posted by Mister Adequate View Post
Without wishing to necessarily absolve the game, that is entirely deliberate and indeed part of the point of that route - you're supposed to question whether it's worth it. sans makes this pretty explicit in the Last Corridor on this route, and (SPOILER)his whole gambit is exactly the same; to make you give up out of annoyance.
See the ironic thing here is that (SPOILER)the Sans boss fight is not annoying or unfun at all, in fact it's the one part of the game I'm considering having a save game right before so I can redo it whenever I want. Because it's damn fun to fight him.

And, well, (SPOILER)I don't care much if it's intended or not; I consider it bad design either way. The only justification I can imagine for intentionally boring the player is if there's a payoff for it that absolutely requires the player to have been bored for it. Genocide Route would have worked equally well (for me at least) if you cut out the boredom of grinding. Hell it doesn't even touch upon the whole thing being a time-intensive grind.