I personally think those ratings scare people off certain materials which is sad cause cyberskin and UR3 is the most realistic feeling material out there.
Most of my realistic dildos are cyberskin and I LOVE them! I have never had any health issues from them - I've even practiced things that people would have a fit over if I mention it here and yet ... no worries at all.
I don't think it's as bad as everyone makes out. But, their loss.
I thoroughly enjoy using cyberskin toys and that won't be changing any time soon!