I think the meditation playstyle is ok as it is - it keeps MNK basic in terms of rotation while prioritizing downtime management (like Form Shift). I would be interested in seeing more built upon this though - such as special skills that increase chakra build-up aside from meditation itself, or some other skills that rely on those stacks. Like the AOE equivalent for Forbidden Chakra, or a "timer freeze"/refresh for Greased Lightning (even with a high CD).