He cannot accept the fact that Meta Knight, despite the nerfs, still receives rather valuable match-ups to his disposal. In fact, some of his nerfs can be turned around as buffs. His B-air, for example, is better for him than his previous, since it provides a better finishing than before and can add into (somewhat) a wall of pain. Though the L-Cancelling and buffs of many other characters, alongside Melee's physics, Meta Knight definitely may suffer on that, but he still has dedicated players getting him on good leads in tournaments.
I would at least rank Meta Knight around 5, max, behind Diddy Kong. (And just wondering, who else thinks that the S-Tier space should be as ludicrous as Melee's for P:M? You know, 8 characters in the S-Tier?)