Looks like a nice trailer there, so it's good to see someone doing it right with proper equipment.
I tow my B2920 on a 7x16 tandem landscape trailer with brakes, using an Acura MDX (5000# tow rating), and it does well. Won't win any drag races, but the overall stability and braking are extremely good. It tows real nice and I've never had a worry once I got over my initial concerns.
I see many guys in 3/4 ton pickups hauling unbraked trailers that look like they are about to self destruct, so to me it's not the size of the tow vehicle that counts, it's the safety and condition of the whole package.