What would be benefit of such limitation?
Narrative consistency and commitment to long term choices.
Thanks for asking.
Respecin is great so I can take full advantage of ability raising magical items and it gives nice flexibility to adjusting your companion build to more your liking. I only wish that Larian would give as ASI every fourth level no matter how you multiclass because only two ASI if multiclassing is not fun and Larian is all about us having fun.
