Probably because Sig ballwashed them a certain way and they sucked for the contract. Then whoever made that decision has to go back to (upper echelon) people and admit they
made a mistake and eat a big turd. Good luck with that happening.
Also I wouldn't say that its "so great" I would hazard a guess its more in the realm of "non zero possibility". You take a PD with 100 people on it carrying guns hundreds of hours
and that turns into 1 incident a year or something avg thats not a high fail rate but still enough to be alarming. I think Somerville has had it happen more than once and I think Cambridge might be up to 2 now or something, lol.
This whole thing is pretty bad though I'm surprised it hasnt come to a head sooner. I think the only reason it hasnt is because the millutary version (M17, M18 etc) has a safety and the safety lever, if engaged, blocks up the whole works when its "on" which cuts the issues off at the pass.