This is the Pull Trick: Pull Tricking, Shift Clicking & Other Micro [AOE3] - YouTube
Maybe this should either:
- Be added to the “The Art of War” ( = intentional mechanic)
or - Be reworked? ( = coding issue )
Shouldn’t you be able to know this via the game’s tutorial? Personally I don’t mind it, just think it’s one of those things beyond civ. differences which should be thought directly or reworked to be consistent.
A better player won’t abuse it anyways since the micro is intense and that’s part of being good (in my book).