You could, but then atleast there wouldn’t be a myriad of non-war banners all day during the actual war diverting you and possibly making you misclick
This and no defenders on regular run. There is no comparison between a regular run and a war run
One tactic though is for the team to mass wave normal attacks to bury the normal attack letting an attacker drop a top base.
Very easy to miss your own defense with an overflow of banners