As the title says, is it detectable?
Since I think that Blizzard is detecting the pathing and not what spells or rotations you use.
I tried searching so sorry if this is an already answered topic.
It does what a player does too.
Besides that, the Server will only get the spell que, not everytime you "press" a button.
Otherwise this would be like a mini DDOS with many bots hammering the buttons like crazy.