I personally think its pretty simple.
Motorcycle Gear = impact protection + abrasion protection.
ATGATT is both, covering you entirely.
I guess there are levels within ATG
A full leather racing suit, would be top of the food chain.
But pants and jacket with at least minimum padding, is still ATG.
Helmet, gloves and boots are an obvious part of ATG, if you are lacking any of these three, you don't have a place in this conversation.