I can't help but think it has to have some affect on the flex of the sidewall, thus affecting handling and/or tire temp in a way not considered by the manufacturer. It might make the tire run cooler because it's stiffer, it might make it run a higher temp, who knows?Never heard of it used in tires but it probably works good.
The military is now using Rhino Lining in vehicles for IED blast protection. As well, industry sees value in it for coating buildings for protection from bomb blasts and VBIED blasts.
I saw a demo on a TV show and was very impressed with the results.