This is unfortunately a rather common issue which has yet to be fixed, but then again, wasn't S&W's old slogan for the NG Series something to do with being "carried often, shot scarcely" or something?
One thing that surprises me is that Smith & Wesson still hasn't tried their hand at hybrid polymer/steel framed .357 Magnum Revolver. Seriously, Ruger has done it with the LCR, Taurus has done it with the Poly Protector, so why not S&W? The M&P Series of semiautomatic pistols has polymer frames with an embedded stainless steel chasis, so they should be able to easily design a revolver frame based on the same principle. (I used to think that the M&P R8 Revolver had a polymer frame due to the M&P branding, but nope, it's Scandium alloy.)
Also, despite my doubts of how well a polymer frame could hold up under a steady diet of .357 Magnum loads, I've yet to hear of a broken LCR or even Poly Protector, so it seems like polymer frames work just as well for revolvers as they do semiautomatic pistols.