Also, there HAVE been issues with PK keys, as not all of them were actually even funded.
Again..why trust him? But hey, it's your own money, do with it what you want.
this has been addressed - the 2fa coins funds were at risk because Tim held the funds - they were never loaded to the coins until someone went to redeem them.
for the pk ones, the coins were loaded directly - those that were not were ones that where the recipient never confirmed it or the coins were "lost" in shipping.
with no other issues around pk coins, I would say they are most like safe - that said, would I risk it? nah, I would peel as well.