Agreed. My Miata (and my two sons' Miatas) go fine in the snow in northern Virginia, but only as long as they have dedicated snow tires on all four corners and a couple of bags of sand or salt in the trunk. That's with normal northern Virginia snowfalls of 4-8 inches.
When we got the 30+ inch snowfalls this past winter, my Miata stayed in the cozy garage and I drove the Silverado 2500HD; which was TERRIBLE in the snow (2wd) until I got four dedicated snow tires on it and loaded the bed with weight.