Thank you Omni, for bringing this out in the open.
My vote goes for solution B, i think that thet deactivate drone button is totally useless.
I cant really think of a time when i used it on purpose, and especially in the pro-level battles one misclick can cause you to lose the battle.
I however dont support solution A because i think the manual drone calling brings
a strategious aspect to the game aswell, sometimes it is smarter to do it on your first turn,
sometimes it's not.

-Soul out, peace.