>Major respect for recognizing that and not doing anything like dual licensing or CLAs

It's nice, but in my opinion there is nothing wrong with doing it either. It might be even good thing if it ensures stability of the developer. If it turns out the original developer with dual licence/CLA is no longer good, community can continue from the AGPL version on its own and if the original developer wants to incorporate these new community changes, the AGPL will "infect" the dual licensed version.