I agree with the comments everyone needs to be tagging a symbol, because if everyone isn't, the person that does singles themselves out. It's not just random bombings, of which I'm sure there were many even during the Republic, it's bombings being conducted by subject X. The person is then singled out, known identity or not, and resources begin to be applied. If there isn't a grand movement of intergalactic taggers then the person has essentially just painted a bullseye on their own head. Not a terribly smart way to carry on a grand rebellion.
Being heroic is fine, I just prefer my antagonists and protagonists to be smart rather than visually dramatic. Others may prefer the contrived dramatic flare, to each their own. My opinion also is more from a game perspective as opposed to whether or not the cartoon will be fun to watch. I just think the rebellion's success was more beholden to spies, diplomats and slicers, rather than demolitionists or pilots, that's all.