While bloom is annoying for high-rof weapons, it's not a 'problem'. Yeah, slightly lower bloom would be neato, but removing altogether will make precision weapons (DMR, BR, Carbine) wayyy more effective and would require rebalancing of all the other guns. H4 seems to be shaping up to a more precision/longer-range game than previous Halos, and removing bloom would render other guns useless.
Also, zero reticle bloom has nothing to do with being a super-soldier, it's based off of the gun, not how powerful you are (though you could make the argument that if you're a huge powerful soldier you'd be able to hold the gun more steady) it's part of the game and ther is a 99.9% that it will not be removed.