If this was just a battle about a big company going after open-source branding, it's pretty easy to see the sides. But this is a guy who ripped into a competitor (which btw, has sponsored MANY WordPress conferences and provided tooling/fund for things outside of WordPress core) and fractured the community significantly.
Honestly I don't GAF about WPengine. But Matt makes money off of WordPress too. And his actions led to 1/10 of his company quitting.
I'm pissed that as a open-source developer, Matt has pulled the non-profit open-source project into this mess, when he owns a FOR-PROFIT company that would benefit from WPEngine failing.
Matt needs to step down. WordPress as a open-source project needs to be in the hands of people who want to drive the mission forward in a non-sleazy way.
He did all of this during the last day of a conference.
So rather than inspiring the WordPress community to push forward and do good things, he spent an hour just antagonizing and shaming companies that literally sponsored the conference.
This is like when Elon Musk cursed out advertisers on Twitter.