>>715025162
because those are expensive
you can flood a battlefield with b1's and some b2's and do the same thing but cheaper
the biggest reason why the cis lost the war is because they kept on getting kneecapped by sheev and dooku to keep the stalemate until anakin could be turned
you really only need commando droids and droidekas to deal with arc troopers and commandos, and they only attack strategic targets
jedi can be overwhelmed by b1 blaster fire if the battlefield is chaotic enough