Not sure hows the other healer class, but back in pre 4.0 i never run out of mana, my mana even never reach half back in HW day and thats was a "good" play for me (everyone top up, dps quite often, esuna etc)

Now for every heal, dot appliance and combat spell, my mana just drop pretty fast toward half, there is even a case where my party reach boss and i realize i have 1/4 mana left which got me panicked a little bit (thankyou mana card)

Overall i like this change.

Fake edit: i just realized gravity and earthly star cost a whooping 700+ mana, no wonder my mana is leaking so fast zzz