I edited my previous reply to your post to point out that your proposal would often increase miss chance by 15% instead of decreasing it.
Also I explicitly stated what would be acceptable hit probabilities for me. At a minimum 85%, more reasonable 90% ( that average includes both cases when you have and not have advantage/disadvantage ).
And I do not know where you see inconsistency in my post. On the other hand, it looks like you do not consider misses as an issue now in BG3, while your own compilation post mentioned it.