Seems they somehow "forgot", but if it was possible to fix for C6H it should be possible for C7H as well. My Gigabyte B450 board shows correct readings with a 2700X. My Prime Pro with 3700X is as borked as the C7H in that regard, and that is with 1004B. Only difference is it is possible to override power consumption with the Prime Pro, useful if cooling is good.
(somehow ironic that C7H is more limited than the Prime Pro when the Prime Pro has a much weaker VRM)
AMD Ryzen R9 3900X | Corsair H150i Pro | Asus X470 Crosshair VII Hero (bios 2901 "ABBA") | MSI GTX1080Ti @AIO Water(Arctic Cooling)
32GB(2x16) G.SKill Trident Z RGB @3800(16-16-16-30-42-1T DR B-Die) 1:1:1 | Samsung 970 Evo Plus 1TB | Corsair RM850x | NZXT H700