Thats why there are 2 breeds of cross bike…
Race bikes, still been made year on year. Big bb drops, no bottle cages, steep seat tubes and a super short head tube…
Your also seeing more appearing with more relaxed geo that can be bimbled around. Come with 2 bottle mounts and a nice tall head tube for comfort…
If there was any performance gain to be had racing with discs they would be doing it already. Half the elite field are mtb riders. Companies that have given their riders the option as Cannondale did all demoed discs but raced on Avid Ultimate canti’s… Those disc equipped Cannondales have not been seen at a race since.