I guess it depends on how you define aggression. IMHO no inherently defensive act is aggressive and, since "escorting" appears to be a bluffing behavior meant to cause humans to leave a location without actual conflict (combat), it is inherently defensive no matter how terrifying it may seem in the moment. Aggression, at least to me, implies offense ... attack, no BS, no bluff, attack with intent to harm or kill. Some people do not distinguish between threat of aggression and aggression itself. I do.
I've been escorted out of 3 places I can think of, one quite a few times. Eventually I got fed up with it and went back to confront the escorting and escalate if needed. Exactly nothing happened. Nor have there been any repeats there or anywhere else since. (THAT has interesting implications about communication.) There have been clear messages they're present, but those are directed for me, not at me, in other words, they're not even defensive in nature.
There's truce on my mountain now, live or let live, and that's all I ever really wanted.
MIB