Yeah, as a past contributor and long-running homeserver admin I feel pretty rugpulled here. This violates the expectations set in past communications. Synapse was something very different to Element.
(This would at least for me have had a very different taste and reception if the private for-profit alternative would have been done under a different branding than "Synapse Pro" and not hijacking matrix.org community channels to promote it. They don't seem to be able to keep their hats and chairs properly separated)