I know, but I try to help you forward. You can always rollback to a previous version if you don’t like the update. WP Rollback can do that or you download it from MainWP Dashboard: WordPress Management without the SaaS (advanced view) – WordPress plugin | WordPress.org (at the bottom)
All the things you mention are minor issues, you can report here. Or you could have applied for the early release testing and help fix the issues before the release. So this has nothing to do with the dashboard not being robust enough.
I agree, it already improved since the RC1 version. Just create a post for it with your recommendation, so they can pick it up.
This needs an update of the extension and was already reported by me in Database Updates don't fit in the new widgets
I don’t use that, so I haven’t tested it, but it sounds like the same as for the database updates.
This should be a new post as well, and it would help if you can recommend color codes that work for you.
I can’t reproduce that, so again please create a seperate post with a screenshot.