Fortunately for the disabled players, it’s not up to you.
I’m pretty sure Blizzard cares more about not taking away a QoL feature of the game from the disabled community who play WoW, than bots (who will still pay for a sub and just do what they do below ground like they apparently do in Classic.)
In addition to the facts Thallia has pointed out, I bet another reason you’ve seen fewer bots is because of Blizzard pulling out of China because of the licensing dispute.