It's not leveling the field when you're turning what is, nominally, a valuable commodity, into something that anyone and everyone has in abundance,<..........>
Rather have that than a select minority group of people practically having a monopoly on a resource that all others use. Raids should not be the main (practically sole, as it is now) source of one of the most sought-after crafting components. Economy should not be so dependent on Operations.
That said, I indeed do not think that making them drop off HM FP bosses is the best solution. Craft boxes buyable with crystals definitely is a step in the right direction, though.