The absence of WASD controls
This is a good point. However, I think trying to "solve" it by implementing a control scheme that uses WASD for camera movement (not saying you will do that) can do more harm than good. While I wouldn't mind an optional setting for such a control scheme, I think it can be counter-productive to the goal of onboarding players due to its impact on encouraging hotkey use.
While it may seem like hotkey use is a step for the competency to mastery stage, I believe it is actually related to newbie to competency stage. RTS games rarely teach hotkey use (almost all RTS tutorials will tell you to "click on the ... icon to do ..."). I think that can be a contributing factor to why RTS games feel so overwhelming to control. To do better in that regard, an easy-to-learn, intuitive hotkey setup is needed (which is another aspect RTS games have traditionally been terrible at) and that's where using WASD for camera panning will...