I think power and heartrate cover whats needed. If you’re doing 330 watts at 80% of max HR, its 330 watts whether you’re drafting or going directly into a headwind. It really doesnt matter what the conditions are.
What it would be useful for is reviewing more detailed course conditions to help coaches teach racecraft. A coach reviewing what percent of a crit you spent in the draft vs off the front doing 30% more work is valuable. I dont think having that data up on a screen during an event will do much of anything for you.