This could be disastrous not just for the firearm industry, but also a similar mod mentality product: the automobile. I've heard rumors in the past year or so of auto manufacturers considering such actions as these via forums and so far nothing has materialized, but from what I understand in regards to legal precedent, is that all it takes is one major lawsuit to win. This then gives future plaintiff's the no pun intended, ammo, to bolster their own individual case.
I plan on sending a brief and polite note to s&w customer service, explaining to them how I and many others choose their product for the very ability to modify to our personal taste/preference. How this has been an industry norm from day one and if in fact this hinders my ability to personalize, I will no longer continue to grow my personal collection of future smith and wesson products.
It can't hurt, but being realistic probably won't help either