That one of Matts claims. Personally I suspect the actual trigger was WPE removing Automattic's affiliate key from WooCommerce and costing them $m/y of revenue.
If that claim is false, that's perjury.
If you are a party to this dispute, why on Earth would you comment publicly?
If I were an employee at a company being sued I wouldn't say anything related to it even without an order from legal because I wouldn't want to have to risk answering for it in the trial. Why dangle yourself out there as a target for the opposition's lawyers?
I haven't seen any comments from any WP Engine employees. They have an adult CEO, though, so I'm sure she told them not to comment on it.