Probably becasue roadie kit is relatively safe from harm
To be honest that is still a very good point and while you might routinely dint rims, the same isn’t typically true for frames and forks.
I guess the point then is that these rims might not be susceptible to denting because they are carbon fibre. I don’t know as I’m not a materials expert, but I wonder if they would crack or shatter rather than dinting and the force needed to do this is so much more than they would typically be subjected to.
What’s really interesting (and very compelling) is that I read that Easton are offering their new Haven Carbon Fibre wheels with a completely unconditional, no compromise replacement guaranteee. This covers everything from, ‘I stacked it into rocks at mach 2 in a race’ to ‘I cased the living sh*t out of them on a repeated basis’ type issues. They recognise that if they are going to sell a wheel set for $2500 then they’re going to have to also package in some reassurance that they will get the spanking they deserve.