That is surely a strange thing. I never heard of it before on any faucet in a PC, another RV, or brick & mortar house. If you decide to replace your faucet, my experience below might apply.
In our 11 year old PC-2350, I removed our kitchen faucet to replace the cold water line to it. I had damaged one of the two white plastic pipes (shown below) accidentally nicking the line with a saw blade during my galley base cabinet reconfiguration project.
I also replaced the ultra-cheap white plastic bathroom faucet Phoenix installed back in the day, the sibling to the outside shower faucet.
In both cases, the water connections utilize large plastic tri-wing nuts which are hand-tighten only. The kitchen faucet is difficult to remove because it is too confining of a work area, and the work area is high in the cabinet. The hot and cold water lines are so close to each other that the wing nuts interfere with the adjacent pipe. The bathroom sink faucet was done in a snap with no tools required because the lines are far apart along with such easy access. Anyone can replace a bathroom faucet in minutes in the parking lot of the store you bought it at.
I took this picture during the kitchen project. It was not possible to turn those white plastic tri-wing nuts while inside the cabinet. When Phoenix installs the kitchen faucet, they first spread the copper pipes apart, attach the plastic pipe extensions as shown, squeeze them back together as shown, then mount the faucet to the counter top. Afterward they connect the other ends to the house pipes. I ended up doing the same. I was not able to spread apart the lines via bending the copper while inside the cabinet because the other ends connected to the house prevented me from doing so. But maybe I didn't try hard enough given my uncertainty of what I was dealing with. At the time, I was replacing one of the extensions anyway so I just disconnected both. If replacing the faucet today, I would try my hardest to bend the copper lines while inside the cabinet to disconnect the plumbing. I would also try to find a replacement faucet with the hot and cold fittings far apart, utilizing the other two holes in the counter top. But for most new PC owners, you have the nicer modern faucet with no escutcheon plate which assures you will have this same challenge.
