ppi vary from wrench to wrench
 

I've had quite a few ppi the done for people buying cars from me. I'm always amazed at what they do find and what they don't. I usually disclose more problems known to me that the ppi misses. and the ppi often has wrong info ("seats don't slide" when in reality the seats do slide etc)

and most places use different forms etc. if PPI did not report on body and paint etc...

if you are a perfectionist, get the whole car repainted or just drive it until it needs paint.

It doesn't sound like anything to be all that concerned about.