Unless it's just a mistake on Moto's site, I'm guessing the reason for the omission is that Google wants to play up the rapid charging capabilities. Wireless charging in its current form is far from rapid, so they may just be trying to prevent any confusion that many consumers might have with the two.
I'm thinking that both Google and Motorola will be playing up the rapid charging capability. I agree that wireless is not quick, but I've gotten used to ease of use of it. With that being said, I'll still be interested in hearing what the "real world" charging time will be to fully charge the battery with the rapid charger. I'll also be very interested to see if the rapid charger comes with the device as "standard" or if we'll be paying $25-$50 (or more!!) for the privilege.