I've also noticed this problem and find it a bit frustrating.
I like to use Scene Tabs at the earlier stages in my project (when the number of scenes I've got fit nicely across the top of my screen (I work on a laptop). At a later stage in my project I've got too many scenes to fit across the top of my screen nicely (I do an interior view of every room as well as the usual plans, sections and elevations), so I'd rather use the Scenes Manager and switch off the (by now messy) scene tabs.
It would be nice if this setting could be saved with the file, but, as we've seen, they come back every time the file is opened again. Not the end of the world, but maybe could be 'fixed' in a future update.
Thanks for the shortcut key suggestion. Good workaround.