The visibility of these questions is intended:
I think there's a misconception here -- closing does not mean "get this off my screen ASAP", closing means, "this question should be re-evaluated by the community".
We moderators rely on your checks.
If these questions were colored differently you would train yourself to ignore them even more than now. That is not how we should work together.
There is already a view for open questions only: Search for migrated:0 closed:0.