You are making a public display out of your ability to harm those who you feel have wronged you. It is understandable that some users might want to, in light of this, reduce your ability to harm them. It is also, in a way, understandable that you would not want to help them do this.

Because with what you are asking WPEngine, that will be the result. Other hosts will follow to not be taken hostage by your opinions. So if WPEngine creates another repository for their customers and the very popular plugins they acquired, how do you plan on reconciling their solution with WordPress'? What happens once there's several Extend stores? What happens to authors who need to push plugins to all stores? What happens if I'm hosted on wp.com (and I am paying whatever tier allows me to install plugins) who doesn't use WPEngine's plugins repository and I want an updated ACF?