I would not use them as tie downs unless it could be verified that some kind of reinforcement to structure was also added. Which, because it appears there pretty close to outside edge, I cant see that might have been done unless camper had been opened up. Can you see any of the thread? If its a lag screw simply threaded into frame I wouldnt use for more than keeping cords off the ground.
You would also lose pull angle even if structurally able to withstand
camper movement. Which you mentioned shorter distance...if it is just a matter of using turnbuckles you have that are too short, simply add a few links of chain, or replace threaded rod with a longer piece of all thread to extend.
The trim being cut and difference in caulk raises questions. Eyebolt looks pretty shiny?