This... sounds plausible.
The example I'm thinking of is it used to be popular to have an auto-follow weak aura, even as late as Classic. People would use it to basically do AFK boosting in SM. The booster would basically use it to put people on auto-follow and could then lead them around, zone them out, reset, zone back in and rinse and repeat.
Blizzard ended up banning this kind of thing as unauthorized botting eg
Do not use the !follow WeakAura, you can catch a ban.
Blizzard's position seems to be that any addons on weak auras can't automate (or broadcast) inputs. So, as one example, there are Pet Battle Scripts that reduce your activity to repeatedly pressing "Auto" ("A" key usually). This is fine because you've replaced N inputs of 1-3 with N inputs of A.
So if the game didn't have auto-loot, an auto-loot weak aura might be considered "botting". Interestingly, addons like Leatrix allow you to auto-accept quests. Wouldn't that be "botting" by this same standard because the game doesn't natively provide this functionality? Yet Blizzard would have to ban half the player base if they pulled that trigger. So none of this is really consistent.
So auto-follow removes the need for user input and is thus "botting" (by Blizzard's definition). So I can see the same argument for auto-accepting roles or auto-accepting queue pops.
IF (and this is all "IF" because we're speculating on the latest policy enforcement) this is the case, a ban (particularly a permaban) is (IMHO) overly harsh. A change in how policy is interpreted and enforced should always be preceded by a warning to affected users saying "hey, don't do this anymore".