Matt's behavior is inexcusable and shows that WordPress needs a complete restructuring without him. Too many sites rely on WordPress to endanger them because of one man's temper tantrum. I don't understand how you can defend this reckless behavior by him. Who cares what WPE could have should have done. He needs to step down immediately.
They could have give a warning 20 months ago that this may happen and then this would not be a thing.