I think someone said it right when they said if the current moto x isn't enough, the new moto x isn't going to magically become that.
There are people who can't charge their phones for 14+ hours, will not be on wifi, may be in a low signal area, but still need to stream netflix for hours or use their device a lot, and then go out after work and not have to worry about battery. I don't think the new or old moto x really fits for that use case. If that was me, I'd get a device with a removable battery.
For other people in a more generic "normal" use, if you can plug it in for 15 minutes before you leave work with the rapid charger you'll be good until after midnight.
Speaking of rapid chargers, is this an industry standard device? Or do you have to buy the $35 one from moto?