@alyx I never really registered that in Ghostbusters, but you are definitely right.
Well the thing about stereotypes is that they are to a certain point true, but like you say it's very hypocritical from the anti stereotype people to soyface at the stereotypes.
They interestingly don't always do that, when they race swap or insert minorities where they don't belong, they have them act like they've part of that society for centuries.
It ultimately just comes down to bad writing.