Hi Virusjuh,
From a performance, security and technology standpoint, we believe all of the changes introduced in Stream 2.0 are for the best and are in the best interest of our users.
It would mean a lot to me if you could take a look at a recent interview on WP Tavern where I dive into some of the technical reasons why Stream has shifted to the cloud and uses WP.com for sign in.
https://wptavern.com/interview-with-stream-project-lead-frankie-jarrett
I understand even if you totally disagree, no problem at all. I just wanted to pass along the information. I sincerely hope you will consider trying Stream again some time in the future.