I already have the LAA for Inspect buffs, but I think it's a bit past its time to have it tied as a group perk, it should just be a standard feature of the game.
They have already said they are working no depreciating Leadership AAs, but that it is a low priority so there is no estimated date for when it will happen.
"Working on depreciating," with "depreciating" meaning no longer group only, is what I think was intended.
Just change LAA to work in or out of group and be able to get them in or out of group. Problem solved.
Well, it might not be as easy as that. In the past people have asked that the LAA's be converted to / replaced by normal AA's, and were told that it would require Code support. Essentially, Elidroth can't make them without intervention from the programmers because they are embedded in code. For the programmers to make the changes that you suggest, they would have to go in and modify the same code that they have to modify to turn these into normal AA's (which is what I "believe" the Devs eventually intend to do).