The issue with this topic in general is that it is hard to talk about buffing weapons without talking about Mayhem scaling. Most weapons are usable in normal mode and TVHM. But the issue is that Gearbox has buffed weapons with Mayhem 10 in mind, but that makes them too strong on non-mayhem modes.
So really what they need to do is increase ONLY the Mayhem scaling on certain weapons so that they are more competitive at endgame. The problem is that you cannot do that on a blanket basis at this point, because they already have buffed/nerfed lots of weapons. So then you would have essentially one level of Mayhem scaling on legendaries and weapons that HAVE been buffed, and another level on all the other weapons that have NOT been buffed. Hopefully that makes sense?
I don’t know the answer, but I can see the problems. Maybe that makes what I have said not very productive. I have always heard, “don’t point out a problem unless you have a solution,” but in this case, I have absolutely no clue what they could do to fix the weapon scaling problems in this game - other than strip it all the way back to the studs and start over. And that includes the anointment system too.
A complete overhaul of the gear and anointment system in a year-old game is not feasible and will not happen, but IMO it is the only way to fix it.