I agree with you about cPanel, but let’s not forget the fact that this is still the most used admin panel.
Not sure if you read the article, but CentOS Stream will basically be “the development branch”, which is basically beta, and that means “unstable”. CentOS gained its reputation due to being very stable. Stream will basically be what “Edge” version of CentOS used to be back in the day.
Since CentOS was abandoned by its creator in 2008. I believe, the community took over the project. Due to the lack of resources (probably a lack of developers), RedHat basically acquired it in 2014. and kept developing the community version. CentOS is the same thing as RedHat RHEL without paid support.
So by moving to CentOS Stream their plans are obviously to use community support to cut down on development costs and to convert more of the CentOS users to paid RedHat RHEL users ($349/y or $799/y as lowest plans). Not going to make any assumptions on why they did it, buy you have to know that developing an OS is a very expensive operation.
So, if nothing changes, maybe the future of CentOS as we know it could get jeopardized. One of the reasons is that even if somebody (community) takes over the development of free stable CentOS as it is now, there might be a problem of resources. Free work on projects by the community is something that demands extra time (time=costs) and a big question might be will there be enough programmers to support further development at a reasonable pace.
If things stay with current decisions and CentOS loses traction, there might be 2 viable solutions for current users:
1. Move to paid RHEL,
2. Move to a different distribution.
Using Stream edition is a highly unlikely option for production site owners in the years to come.
Anyway, to be able to understand the issue better, you need to get familiar with the history of CentOS:
https://en.wikipedia.org/wiki/CentOS
What we can hope is that either the CentOS petition makes any difference, or CentOS keeps enough support by the community so the development keeps going on on the stable version for free. For now lets try to stay optimistic.