I would not be afraid of towing any trailer as long as you follow the recommendations you read in the thread and others on this forum.
I'll summarize and add to what have I read in these posts:
1. have a proper tow vehicle for the size trailer being towed;
2. use a good weight distributing hitch if appropriate for the trailer tow vehicle combination;
3. use some type of sway control even if weight distribution isn't needed or if your tow vehicle manufacture recommends against (Honda Ridgeline I believe).
While some of the poster's here would say we violated number 1, we towed our first Airstream, a 2005 22ft CCD with a 1996 Jeep Cherokee with factory towing package (5000 lbs. capacity) and the Equal-i-zer hitch. It was a little white knuckle on the way home, less so on the first trip and very acceptable after that. The Airstream dealers hitch setup was the cause, too much rear end sag and not enough weight transferred to the front wheels of the Cherokee. What happened in between driving home and each succeeding trip is I read the hitch manufacturers setup recommendations and followed them to put more weight on the front wheels as recommended. Passing semis on the I-15 freeway gave us no grief even though they don't stay close to the 55 mph speed limit (trucks in CA).
The Cherokee did have a problem with power on steep grades requiring second gear and about 4000 RPM to maintain 55. A new Dodge Ram tow vehicle solved that problem and a 1960
18 ft Traveler is in reconstruction for those times when we want to get out in the desert on back roads with the Cherokee.
Another thing to remember is that the vintage trailers (about 25 years or older) weigh 1000 to almost 2000 lbs. less than their modern making it much easier to find a tow vehicle without going to a 3/4 ton truck of your choice. Then again the new Sport models have dropped some weight so they can be pulled by smaller vehicles also.