But as Theo pointed out, the public was not privy to this long running dispute, and Automattic's drastic action came effectively out of nowhere.
Matt seems so preoccupied with this line of thinking (i.e. is WP Engine doing something wrong) and not nearly preoccupied enough with the impact on the Wordpress userbase, the long-term perceptions of the Wordpress brand, and the overall business confidence in Wordpress as a platform. There are ways to balance both, but Matt has chosen not to.
It is clear to me that Matt sees Wordpress as "the foundation" and "the trademark" and "Wordpress.com" and not the 25% of the public internet that uses it.