Isn't that the point of it, Groad or whatever. A road bike that you could take to a crit but can take big enough tyres to also do some light off roading the week after?
I bumped into a local pro on his team issue spec tarmac bashing through one of the local gravel routes the other day. I guess a combination of skills, not paying for your own bikes and not giving a shit turns works for him.
assume they're banking on most gravel bikes end up being ridden 90:10 road:gravel...