If they will ever be allowed as road legal tyres, how long before the police work out stop sticks (spike sticks/traps) wont "burst" the tyres and make them illegal

Great tyre for crims
I'm guessing that the stop sticks do enough damage to run flats to disable a car?
Friend of mine "discovered" the benefits of run flats the other day, when a relatively shallow pothole ripped his tyre off the rim, leaving him to call rescue to get his car recovered. Duh!..
I wonder what the effect on handling, and comfort is with those special tyres. Would have thought they could just put a very thin artificial sidewall to keep "standard" looks though.