OK so SolarWinds support is going through some growing pains but their is positive movement so that is good.
I think one thing that is sorely missing is a way to escalate your case. Clearly the priority of a case is a crap shoot. To me it seems they are all treated pretty much the same. But I think a clear distinction needs to be made between everyday issues and parts or all of a system being down.
Maybe something as simple as changing the case priorities would help from High and Urgent to System Down, partial system down etc.
In any case something needs to be done. Right now the only thing you can do is whine to your sales rep IF (big if) you can get them or post on the board in the hopes a PM will see it.