DENT - Destructible Environment Network Toolkit

I just bought this and it said that this is a 4.18 supported content pack, but it’s broken as can be.

57 fatal errors.

It’s not because the apex plugin is disabled by default either.
By adding it to a project and then enabling apex destruction, or enabling and adding it to a project. It’s broken either way.

It doesn’t seem to be a mistake that this is mislabeled as 4.18 supported, b/c of the note about apex destruction in the description on the store.

So what gives? Am I doing something wrong?