> By stashing infrequently-used items in a command bar like this, […] You don’t need to add that extra toolbar or layer of menu items.

I’m concerned, from this description, about people putting features only in a command palette, and rendering features completely undiscoverable.

This is one of the big problems of Windows’ Start Menu ever since Vista. In XP, you could find all your programs easily. Vista kinda hid them, and Windows 8 hid them a little more, and 11 hid them a lot more. They’re still there, but honestly difficult to find.

So please make sure your features are still discoverable.

Also remember that a lot of users are shockingly bad at typing. Command bars are a power user feature.