We have revisited the "Environments" feature of the Profiler and are stopping to collect performance data on non-production environments. With this change the user-experience becomes much better, because we can now always display the production data graphs. The environment switch dropdown was removed from the UI.
Our customers so far haven't used performance data from other environments and we came to the conclusion that the additional complexity in the user-interface is only causing confusion.
Nothing has changed for regular profiling traces: They are still collected for every server and environment.
If you do need performance data, for example during load-tests of staging environment, you can just add a second application to your account and use that for testing.