Rubber does damp oscillations better than inter-leaf friction, so the rubber-sprung Torflex system used by Escape (in all models other than the 5.0TA) is better damped than a basic leaf-spring suspension. This smooths the ride and improves control.
Although shock absorbers are routinely available for rubber-sprung independent "torsion" axles (simlar to Torflex) in Europe, Dexter does not offer shock absorbers for their Torflex suspension (and neither does any other manufacturer in North America of this type of trailer axle/suspension), and the generic-fit retrofit kit from Monroe has not been available for years. Airstream has used shock absorbers with this type of suspension for decades, and since they switched to Dexter's Torflex they have had a mounting tab welded onto the suspension arm (I believe by Dexter at the factory) to facilitate this. Many people have built their own shock absorber mounting brackets, and they are offered for some specific models by a company which has also investigated the possibility of providing them for Escapes (most recently about a year ago).
Although the Dexter Torflex suspension is a premium feature for travel trailers, it is still inferior to the suspension of any car or light truck, so the trailer contents get a rougher ride than you or the cargo you have in the tug. This is why some people have reported refrigerator doors opening or latches failing, and similar problems - all travel trailers have this sort of issue, which has been discussed in this forum, including the topic Any Damage From Driving on Rough Roads?