I meant using high-tier planes, not high-tier pilots.
It's wrong to use end-game content on low-tier ships, most especially since the game balances the ship tier, not the plane tier on the ship itself.
Just imagine what if the host started with two CV1s only, one has at-level fighters and the other has T4 fighters.
Although not directly related, this is similar to the old (P)CV5/6 + high-level pilot + T1 fighter exploit.