Russia's cyber warfare against Ukraine was initially extremely effective, yet it still failed to achieve any lasting advantage. Despite the massive overmatch in cyber power (on paper* Russia had 17x more exploits and 8x more implants!) Ukraine was able to continue fighting. Does Russia just suck, or is cyber useless, or what?
Believing CW can change the outcome of a conflict is like thinking cutting off railways tracks could have changed the outcome of WW2