Been running a CSI blanket on my drag car forever; no heat issues, but it's a tough installation and it blocks the band adjustments & pan, and is close to the headers. The Lofgren blanket looks easier to deal with, though apparently with no containment on the bottom (pan area).
Either way, it's a requirement for my car, and now that NHRA is treating them like harnesses, I'll look into the Lofgren piece. I've never seen a TF explode downtrack, so perhaps shrapnel & fluid getting to the rear tires at speed isn't an issue. Keeping shrapnel out of my feet & legs, though, is.