this aero nonsense is a joke.
You have to be about 20mph to see gains in aero on gravel. when mvdp won the gravel worlds i was 22mph in that race.
so it is pretty safe to say none of us aero will matter one bit ever.
so back to your bickering
at a cda of .35 (mediocre for a optimized tallish gravel cyclist) here's speed (mph) and watts required to overcome drag.
15=65w
16=78
17=94
18=112
19=131
20=153
21=177
22=204
23=233
24=264
25=299
26=336
27=376
due to the cubic nature of aero drag and that so many key sections in gravel racing occur on the flats where speeds can exceed 26mph easily aerodynamics obviously matter.