^ Way to stir the pot....
Your experience with Ruger is very fortunate. They are a good stand-up company, and so is Smith&Wesson; but they may have different warranty policies. Your actual experience with your blown-up LCP is also different from the OP's.
Although it would be great if the OP did get a free replacement for his broken pistol, we cannot force S&W to give him a replacement gun nor are they obligated to do so under the circumstances.
L2R, good luck and keep trying to get a hold of Federal and see what they have to say.