I'm not challenging folks credentials or lab tests, but I saying I have not seen data on pack riding - as I assume its real hard to get. I also don't see tests introducing random wind conditions gusting etc., the data I see is based on repeatable experiments with controlled conditions and calculations by smart people, but not so much how my kid rides.
Pros - Sagan was on both a Venge and a Tarmac @ ToC. All riders have a choice where the weight is located. I'd prefer to put a lead weight on the BB than have it in the rims. My son says a bike feels lighter when the weights are low - comparing two bikes the same mass. Froome - the year he won the TdF had 800g wheels (SRT-24) and weight on the bike for climbing stages. There are many USA Cat 1/2/3 amateurs that need to ride under UCI rules, not just pros. My focus is on the juniors, but same with the U23 and same with masters worlds (I think).

I did the video below (posted already I think) on one of the first tests we testing the aero vs. weight thing. We found for my son's riding light 50mm profiles better for him in every real riding situation. His HR is also higher at the same watts on the 90mm. My guess is he uses more core to stabilize it. My testing is NOT scientific as it is not repeatable and I can't control the variables - just like a real pack race.