You know AE can see everything here on mpgh as well right? If you want everyone to be so secretive about these bots, then you probably wouldn't have found them either.
Also, I highly doubt it was intentional to block these trainers. In the first place: Grimoire 3.8 and Carbon still works.
Secondly, AE has been testing new clients for the past months, with the intention to eventually not depend on flash.
It's rather normal that they would change loaders sometimes to test stuff. Any tools that references these old loaders will stop working cause of that.