PLDs who sit at 100% Mana and only Clemency now and then, why?

[Maeka]

I remember using my MP spells a lot. People would question it. Now, the question is why aren't PLDs using MP spells...!?

That was before they gave PLD a "MUH DEEEEEEEPS!!!!" spell (and then followed that up with an AoE DEEEEEEPS spell!).

I'm quite sure that if Clemency was the only thing you could use MP on, people would have a lot less issues with a PLD using it, esp if there was a way to make it instant.