Sometimes it's not always the installer's fault when a vinyl is peeling. A good portion of the time it's the material that the RV company's use. Now I'm not saying that this is the case here or that FR does this, but simply that it is a possibility. I have been doing vehicle graphics and 3m rock guard for 15 years and seen my fair share of peeling decals from RV's. I also know that the factory graphics on these RV's are GROSSLY overpriced! Is there glue left behind on the surface where the decal is lifting? This would most certainly tell you that it's the material and not installation.
On a side note, once the decal has started to peel there is no re-applying it. The glue has now become contaminated and even if it does actually stick back down it will lift again guaranteed. As for removing the graphics, get yourself a heatgun if possible or a good hair dryer and warm the surface and start peeling slowly. This is the best way to get the graphics off. If there is any glue left try and get some adhesive remover from a local sign shop or get yourself some GooGone. That should help you if that's the road you want to go down.
Just my 2 cents.