Not sure if you're talking about the MM or just plain jane Miatas, but I personally wasn't a fan either till my parents bought their '91. After driving it a few times I fell in love.
No, i've seen regular Miatas, just never a monster miata till then. A buddy of mine's mom has one minus the 5.0, they are alright lil cars. i'd never own one just for the fact that they're death traps!
I don't know thats accurate. I've seen some horrible things done to Miatas. Two reasons, one, their more manueverable so accident avoidence is increased and two, injuries relate to occupant movement within the vehicle at the time of impact. SUVs have a lot more room for people to fly around in or fly out of.