Adventurer in need is ALWAYS tank

[Risvertasashi]

I would argue that the biggest problem is that the incentive is just far too low for most people to pick up the Adventurer In Need bonuses. The incentive isn't enough for most people to switch or to run the roulette more than once.

I think the cracked cluster is sufficient.

Now the gil and exp rewards, particularly for other roulettes where that's all there is... yeah, that's pretty meh. It's why SE patched in cracked clusters before they could even add it to the UI to begin with.