He may not know what private key or seed phrase is. He may think everything needed to access bitcoin is the wallet password but which is not true.

He may even argue that his wallet forget the private key or the seed phrase but which is still ignorance.

Peter Schiff has been a bitcoin critic but he has and he has always failed about everything he says about bitcoin to people. This is another man people should learn from that not everything these well known people are saying should we believe.