Keep in mind that melee are at a very high risk of death from AoE well due to low max HP if they try to zombie DD. While MP isn't too much of a concern in Abyssea, raise does takes quite a bit of time to cast during which the caster can't do anything else. On top of that, if they died in AoE range, they also have to make sure they don't raise up into an AoE and waste even more time/MP. So while yes, they can die over and over and be just as effective as after one death, each subsequent death further lowers their damage uptime and requires a mage to dedicate time to raise them that could be spent doing other things.
Regardless, if you died 2x in a row, something went horribly wrong and you should focus on trying to play better instead of complaining about a justifiable penalty for mistakes.