@paulkosm I think this is just the nature of the powerblock. The problem would be that the latching switch would still be latched in the on position (which is why you get a restart) and there's no way to automatically unlatch it. It might be more annoying to have to unlatch then latch again to turn the system on after a soft shutdown.
Personally I just use the powerblock switch to shutdown every time and never use the menu shutdown option now.