The current Explorer is very similar in size, power, and tow capability to my Highlander. The HL was ok with a 2700 lb TT everywhere except in the Rockies, where it sometimes would need 2nd or 3rd gear at about 40 mph to get over a long, steep grade at high altitude.
Thinking about replacing the HL soon, so I test drove a Sport. The turbo is definitely better for towing, if one is buying new. But if you already have a non-turbo Explorer, yes it can do the job as long as you don't want to win races up hills.