1.) Who cares, if it isn't in the repository and you need it, request it.
2.) Why people confuse rolling release and bleeding edge is beyond me, Solus actually tests things. An I for one won't update software in the repository I have no idea how to use thus test properly.
3.) If it hasn't been fixed yet there must be a reason o look if you have a look at the dev tracker you'll see its not a trivial task.
4.) They announced it on all official social media and a blog post what more did he expect a personally written letter? It was also done months before the move actually took place. An was only a problem if you didn't update AT ALL during that time. Also kind of ironic as when you update Arch or Manjaro or many other rolling releases and it breaks. They blame the users for not following the forums / website / mailing list to see if manual intervention is required.
5.) Umm... So his complaint is that Solus didn't have the nvidia-developer-driver branch for example, and now it does... An has had for a long time. Wow.
6.) How can you criticise something that hasn't happened yet?
Honestly that was a waste of my time.