Frozen_Heart
Hero
I've done essentially the opposite. Specifically designed a setting where almost everything is usable so players have as much freedom as possible. (apart from odd cases like dragonmarked houses and ravinica backgrounds.)Just because a heritage is in the core book doesn't mean every table is required to use it. If I was running a game with no playable orcs, then that's how it is.
Sure, if I wasn't building from DnD I'd probably have orcs as the unplayable monster species, but as I want everything as smooth as possible that's not the case.
Which is why a completely from scratch unplayable species got designed for it.