I mostly agree with the technical concern of using the display server for ferrying data. But that's just that: a technical concern. It gives raise to android,

I mostly agree with the technical concern of using the display server for ferrying data. But that's just that: a technical concern. It gives raise to android, where apps do not cooperate except to exchange ad network tracker ids. Where we disagree is the concern that it is an app that should decide who can communicate with it. No. My desktop, my decision. This is a political concern about ownership and what it means. It is also part of freedom of end users to macgiver their desktop as they see fit. It unlocks e.g. unexpected accessibility and workflow benefits, unforseen to the authors of the app. These experimental setups learn us better ways, after which, a professionalization and real interface can happen if enough users want it. I fear we will loose these experiments with wayland's portals.