Trim View Artboard Selection
In a document with multiple artboards and bled artwork.
In Pixel Preview Mode, Turn on Trim View. Select a Different Artboard. Trim View Turns Off.
With no shortcut for Trim View this means you have to go back to the menu for every artboard you click. If you're working with 15+ artboards this process becomes tedious.
While I agree it should not happen, I wonder why haven't you assigned a custom hotkey to a Trim View command?