Expeditions are rated to pull that weight and are just fine. Basically the same engine etc as the F-150. For 2 horses that is plenty, as long as you are not going thru the Great Divide or something. It is the bigger SUV-incase you were mistakenly thinking about the Explorer. MANY of us pull trailers with SUV's, since we need our vehicles for other things and cannot afford to have a seperate vehicle for the trailer. If you can, that is great. Yes, I would certainly prefer a larger trailer, gooseneck, as they do handle better etc.......but I am not in a situation where that is possible or practical, and most of us don't transport for a living. Totally different question.
The OP specifically asked about 2 horse BP's. I still say it is how the package is put together that makes it easy to handle, etc.