I created an account here just for this very reason, to voice my concern about the ACTION sneak attack after Patch 9 announcement. (Thanks you OP!)

I am glad I am not the only rogue bonus action SA fanatic here.

My hopes was that the patch 9 would have a different implementation, but in char creation its still the same.

Short story is that its not critical to my experience, but would be nice (skip the rest for short explanation),

and would help as I am playing multiplayer with my "younger" (29y old) brother in the release. He has not played bg1 and bg2 (like I have in my youth). and
In the ideal scenario I´m a skilled character to prevent save scumming, saving the day while he deals justice to our enemies.

It would be nice to do some dmg at least as a Lore bard/Arcane rogue.

However I agree with Wormerine first point that they just made a fast implementation of the function.