Is there a logical explanation for The Haunted Mansion not having been released over Halloween?

I may guess that the logic was that summer is a larger market, so better a small slice of a larger pie. Ok, but a comedy horror could have received a pass during Halloween thanks to seasonality, while over summer it had to stand on its very limited merits. And it doesn’t seem like there would have been massive competition lining up for the end of October.

So… what am I missing?