Nothing really ‘wrong’ with PR4s - so perhaps you merely wanted to establish ‘cred’ with the dealer?

My local small bike workshop-owner tells the taile.......
“I always telll guys to take it easy on the new tyres until they are scrubbed in.”
“They’ll be scrubbed in , by the time I get to the end of the carpark”. (Says Billy Big Balls)
“Hang on - I’ll just go and get my dustpan and brush”