As long as all the companions get classpools that fit with their story and arnt hard locked i think it'll be fine.

If we get dos2 level party restrictions without having atleast a portion of the classing wiggleroom it'll be rough.

But if we can roll shadow as a cleric/paladin/Sorcerer

Or wyll as a warlock/fighter/bard/ranger i think it'll be fine. Every companion has atleast 3 classes that would fit