Well considering that the M6 is running between $550 and $1100 on gunbroker, there’s the first reason no.
I have been running a Savage/Stevens 24 for more years than I want to think about. I will be blunt, even in its much improved use from the M6, it falls into the “foraging” category. Only.
It is highly dependent upon where you are as to what is the most effective and useful for survival. Back in the midwest where I grew up, the 24 was useful and yet didn’t get that much use compared to real “.22’s” and real shotguns, 20, 16 and 12ga.
And .410 shotshells are really only useful for ‘sluicing’ birds on the ground. Hitting anything on the wing is for experts and stunts. And the slugs are a joke for accuracy and power. My light .41 Magnum load out of a 4″ wheelgun was more accurate and powerful. I checked.
The TNW guns, I kind of laughed at when I first saw them at Shot Show. And bluntly I was being overly critical and not accepting them as a major improvement on the Uzi and Thompson clones I was comparing them to.
But two or three .45’s or 9mm’s at 100y are a heck of a lot better for gathering meat on the hoof than anything the Scout can provide. And up close and personal, 10-33 rounds best the heck out of one and one.
And as the TNW guns share some parts and handling with the AR rifles, I hate to admit it but they do make sense.