Hi, I have a 2018 FR 17RP toy hauler and yes, the stock floor covering is not durable, as are many other things in the trailer. That said, at least it is a place to start and you can improve the original build over time.
I covered my floor with this:
https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1
basically a thick, non-slip rubber sheet. I fastened a bunch of E-track to the floor, which helps keep it down. I didn't want to get moisture trapped under the rubber that would promote mold/rot of the plywood subfloor, so I caulked the perimeter with black caulk or you can use adhesive under the whole sheet. Cutting to fit is tricky, so take your time. Excess flooring is great for other storage spaces. Hope this helps!