no you didnt it :
here hwat’s happen if I play doing [D] [E] by pressing both keys , it always comes to have some [E] [D] because pressing 2 keys so close fails sometime.
if you never have any [E] [D], it means the player pressed a single key or mouse button to get both events.
so yes it’s probably a macro
just try to get the same result if you succeed (I didn’t) , I’m wrong