If we are now talking about naming newly created layers rather than renaming existing ones, then I agree that it would. But it would speed things up even more if creating a new layer automatically moved the keyboard focus to the name field without having to use a hotkey. That has already been requested by a few users.
There also have been requests for hotkeys to navigate through the Layers panel, to expand or collapse parent/child layer groups, & for just about everything else that does not currently have a definable hotkey. Some of these things would work best in combination with other features, for example to automatically open the Layers panel if it is not currently open, & to auto-scroll to the layer & auto-expand a parent layer to reveal a child one if necessary so users can always see what they are typing.
So for the developers, it isn't just about adding one or a few new hotkey customizations; it is also about which overall combination of features would benefit the most users & which ones would add unwanted complexity those in the "K.I.S.S. camp" are already complaining about. All I can suggest is to add your request to the mix & see what happens.