I thought they did in the bug report thread?
Haven’t they altered addon functionality in the past? This isn’t the first time they messed with one specific function while leaving the rest intact.
This is a bit different this time, because I think it’s clear that Blizzard doesn’t have a problem with cancelling and reposting auctions, just doing them at automated level speeds. Doesn’t leaving the cancellation throttle in essentially disable the addon’s ability to function through limitless actions in that regard? I’m not sure what function could be disabled to “break” that kind of speed cancelling without affecting it through normal means.
They don’t want to break cancellation as a function, which is different than drawing overlays during a raid encounter as a function.