The Sig P250 was rejected as unreliable by more than 1 agency that tested it. If I was in charge of a department, and my lead firearms instructor chose the P250 for fellow officers going into the line of fire, I would make sure that he never set foot on the range as a decision maker again, for as long as he worked for the department.
U.S. GAO - B-402339.3, Sig Sauer, Inc., July 23, 2010
Reliability is the "realest" thing. The obvious heir to the .357 magnum revolver in police holsters is the Glock 22, as witnessed by reality.
First I've ever heard of p250 reliability issues, and I agree with your post based on that information.