Chakra as a whole is flawed and something I'd love to see scrapped and redesigned. The main flaws are that a) fifth chakra is the only one that matters and b) you have to spam a button to attain fifth chakra. I equate it to character dialogue that breaks the flow of gameplay in a platformer/action game. The system breaks the flow of gameplay for MNK.
Real-life Chakras all mean different things and have different properties. The 7th/final Chakra is not the only the only one that matters like in-game, and I think a MNK should have skills determined by what Chakra they've activated.