I think it is a good rule!
I always use barbless, well 95% of the time.
As aunty pointed out though, different strokes for different folks.
Two ways to look at it:
1. Rules are rules
2. Rules are made to be broken

I prefer to go with #1 but that is just me.
It is more challenging with barbless, but really just getting used to it.

My barbless experience is mainly based on salmon and steelhead, and trout, so it is somewhat limited on the bottomfish advantages/disadvantages.
My .02 cents
Woodsy Wayne