The one thing that "standard notation is overwhelmingly better" at is notating music, and making it understandable as such. Some people care about this enough t

The one thing that "standard notation is overwhelmingly better" at is notating music, and making it understandable as such. Some people care about this enough that they'll put in the effort to use standard notation even on guitar; some just want to focus on how each specific piece should be played on the instrument, for which tab is quite optimal. It's even quite common to have a format where both are notated, on separate staves. (For that matter, standard musical notation is not even that terrible for transposition once you understand how key signatures work, via the cycle of fifths. It's a bit tedious, but it absolutely can be done; one can even learn to transpose directly on sight. And good tablature notation will of course include accurate info about rhythm, there are quite easy ways of doing this.)