Tell that to Havoc Pennington. Dbus was the solution he came up with based on requirements and constraints set by the DEs. A lot of people have claimed we need something better, but nobody has actually created something better. Till someone does, Dbus is the standard for client communication with Wayland compositors outside the core protocol. Sure beats piping stuff over X ClientMessage events.

I forget there are individual humans behind these projects sometimes, I suppose my comment was a bit harsh. I do use dbus for free every day.