In my experience, the relative queue _is_ helping with that since you can be explicit. If SEMIEB is really more important than SIEB, it's fair to switch—but it should be done as a relative comparison / override. I mostly saw people pushing SEMIEB without being aware what they are pushing down.

Although I would agree that if you have to reshift on hourly basis, this sounds more like oncall than normal dev work :)

Agreed on "on the top" not always being viable / feeling like it, but it helps when you go top-to-bottom consciously as opposed to randomly.