Yeah, that's the usual scenario, Dev starts creating his game, then he gets swarmed with demands to make it a harem, cause some people are too lazy/busy to replay few routes lol.
And evetually game turns into absolutely boring fuckfest, where the girls have no will and no soul, they all just jump MC without any questions like "wow, hey, why are you sleeping with other girls"..?
And who said that harem route here is a canon one? I don't remember Dev saying it, how can it be a canon if the game wasn't supposed to be a harem in the 1st place?