While you say: Avoiding these conditions is basic airmanship, which is entirely true and I know it well, that it is basic airmaship, the quest is:
If you can't guess what altitude is safe for speed margins (based on weather data, etc) accurately enough or
if you don't do it for any reason, why shouldn't the computer actually do some calculations to show you safe altitude, safe speed range, etc. and provide as much information as possible, and if you fly outside of the "suggested safe limit" offer a nice amber advisory to show you are faster / slower than suggested.
Why? Simply because when you watch weather radar, try to guess how can you avoid them you can be busy, and any help offered by the computer system can be valuable.
What is trivial for you, isn't trivial for the system itself
