Question, what is the role of MNK?

By this i mean, it really seems that we are not a shellfish (lol) DPS. It seems (not really certain) that we cant pull the numbers that a SAM can and that would be A-ok, if we had anything else going for us, but BH simply doesnt feel enough to warrant being in the middle of the road oh right mantra...because that is what this game has a lack of healing... So excatly where does MNK stand, a dps that brings some utility? (im being generous here)

For better or worse i did like when MNK was a shellfish at least we knew what we were, now...its kind of weird, or maybe its only me. Thoughts?

https://i.imgflip.com/326uv3.jpg