This is an interesting discussion to be honest.

Do we-

A) Make every enemy in every status
or
B) Make special variants of each monster

I think I'm an advocate of a mix of A and B to be honest. Take arenas for example. Slimes would really change the feel of the arena based on which are available- if it's a neutral arena it's likely to have a giant lichen colony, but there's no status equivalent for that coded to arena, so it gives trojans sometimes.

This has actually been somewhat insightful. Thank you.