ECM bursts are not comparable to wild magic. ECM mechanics are probabilistic, yes, but they are not “wild” in the sense of impacting a whole bunch of attributes completely and totally unrelated to its primary function. ECM modules are single purpose modules (ie. they don’t also inflict damage or anything else) using its own mechanic which literally has its own variables by which to sustain it (sensor strength and ECM strength) precisely so that the entire ECM experienced is controlled. Players going into battle can fit to resist ECM, and logi in fleets can help fleetmates resist ECM further through remote sensor boosting. Everything in ECM occurs strictly in terms of ECM variables and no other considerations such as damage, CAPWAR, or any other kind of nerf. It is 100% confined to ECM.
All EWAR modules are single purpose, including these beloved ECM Burst projectors. The game does not need composite damage-EWAR modules.