I have a 2004 Sequoia Elite that is 100% stock except for heavier wider tires and the saddle. Although I don't use it for touring, I weigh 245 LBS, which I'm willing to bet is more than your girlfriend
and her extra baggage.
I've put just under 800 miles on it this summer and the wheels are as true as the day I brought it home. I can't even say that about my MTB. On my MTB I was having to true up the rear wheel every couple of weeks until it finally stabilized. That was probably due to a bad factory wheel build more than any abuse. I ride pavement only and don't do drops or anything silly.
The only problem I've had with the Sequoia is the 12 tooth cog was not put on the cassette correctly. A very easy fix if you have the tools. I didn't even notice it until I was washing and degreasing the bike. Fortunatly there was no damage done as I don't use that gear.