I see. I think that level of analysis is still on the level of IIT with some if its limitations. It's analyzing qualia from its aggregated effects and features, rather than a concrete explanation of how it arises and what it is exactly.

As far as meditation, it has a function but it's indirect, since it aims to suppress thought. The point here is that there is a way to get rid of all functions but still have qualia, which means qualia must be orthogonal or separate to any function of the brain. And that's just one example. I think there would also need to be an explanation why it is that NOT all brain function produces qualia. There are a lot of subconscious states that are also functional and useful for survival but we have no awareness of. This leads directly to philosophical zombies that don't have any qualia but see plausible if we approach consciousness with functionalism.