If you're interested in this space it's worth looking at data-star.dev. who takes hypermedia in the opposite direction - one endpoint per page, then push updates to components over SSE.
My worry with MESH is that many endpoints might become a (sorry) mess...
The connection per component model that mesh uses is fine until you have concerns that cross across components (this was an issue hotwire also ran into before they introduced morph/refresh).
Instead you have one endpoint per page re-render the whole page via morph on every change. You still have backend components they just send requests up and get their updates via the sse connection for that page. Kinda like view = f (state) just over the network.