Have to agree with some of what is said here.
The focus for some things seems very off to core "needs".
Lots of things being done for webservers, or WordPress, or even visual changes whilst core mail functionality is severely lacking (queue, SRS, ability to filter incoming messages externally etc).
Same thing with cPanel migrations, that's all well and good but realistically, anyone with a sizeable cPanel base is going to get complaints when core functions just don't exist (even as basic as catch-all email).
We are using just for testing and internal needs but I think like many, we've not pushed the button on making it a live service because the risks in doing so are too great, especially around email currently.