Untrue...MP is constantly being restored...and one Cure 1 is 8 mp, having +10MP means one more 30 hp healed, and 30 more hp worth of hate. Whatever hp you have that you get boosted, loses it effect the minute you get hit, and to regain that you need a certain ammount of MP. MP>HP gear in general unless the HP gear is very significant over the MP gained.

HP is only important in HNM and specific things that can oneshot you. lvl 27 PLD and still using Onyx Earrings.