I've found that a number of parties have been surprised to find that the "bolted section" of Humphreys ledge (AKA to many of us as the "Geriatric Wall") requires a "modern rack" in many cases-- there are a few climbs which only require draws, but most of the routes will be scary or dangerous, depending on the leader's abilities/experience if he/she doesn't carry gear. An advantage these days is that most of the route descriptions feature a "recommended gear list". Don't carry anything but sport draws at your peril!
I can understand how you might think that. I know I made it very clear that this route needed trad gear....not much but it is needed. As you mentioned; most of the routes there have very good gear listing right here in the "routes" section. So with a small amount of research no one should be caught off guard.
I have really never thought of the Geriatric wall as a strictly sport climbing area anyway: no ones bolting any cracks out there.