after promoting my maelstrom to first sergeant, i realized something
Fate is indeed the only way to gain Seals if you want to purchase those GC gears and items as you level up you character
if you rarely do Fates or not Fatezerging, you won't be able to purchase those gears at the appropriate level
what i meant is, you'll be able to purchase it without Fates eventually, but your level will be already too high
i also do all GC logs and leves, but still not enough seals to purchase a whole set
those gears are too expensive if you're not doing Fates