I do not like to see people using P2P for centralized exchanges. The centralized exchanges has been confusing people about it. P2P means the exchange should be without any intermediary but the exchanges are the intermediary which make them not to have P2P but another thing entirely.
Just because you don't like it make it less P2P, it's your opinion. But it's still a P2P transaction since the exchange has no say over your transaction. They however has control over your coin in case of deviancy and that's a measure to minimize scam during P2P transaction. That intermediary is very necessary to ensure smooth and secure transaction and does not completely make the transaction less of P2P. You can decide to call it another thing but you should know that it will hardly impact what's already established and people already use and familiar with. Sometimes we should just let go of some things that have little or no impact to the reality.