it's more than some trial have no reward at all... then people have no real reason to do them.

leviathan hm, shiva hm, gilgamesh hm and ramuh hm have no loot at all! i still recall yoshida saying that they must give a reason for the raider to do them raid. that nice, but outside raid, most content have poorly designed reason for be done. the best example is the last set of new dungeon... myth gear only? no new skin from them? i can understand that new player will need them... but personally, like a lot of player there for month (or since the release) outside the ninja myth armor, we often own already most of them. why they didn't add new skin for this dungeon? why i have the feeling that only raid get a decent attention from them and the rest get what they can.

so far the game can be resume to this on one side you do have raid and on the other you have the rest that often ask more work and give often less interessant reward. (craft and relic are a fair example)