Sounds like someone trying to justify his purchase. I wouldn't take anything said in that blog as good info on which to base your decision.
I have never seen a TC with one rack added, let alone 2 - 4 foot racks.
Versatility wise, with a TC, you can a boat, ATVs, etc. With a 5er, you'll be restricted in some states from doing so.
My Dad was able to remove the TC from the truck in 10 minutes or less.
Cost appears to be comparable depending on your particular wants.
A 5er is not cheaper to maintain - with a TC, you are only maintaining the tires and brakes on the truck, with a 5er, you have an extra set of tires and brakes to maintain. And regardless of what you buy, you need to be diligent in that maintenance. Tires on a 5er may not wear down, but they still need to be replaced every 5-7 years. And how long your brakes last is dependent upon how you drive.
The length of a truck & TC is about 22ft. The length of a truck & 26ft 5er is 20ft for the truck + 22ft for the added length of the 5er. Doubling the length makes it less maneuverable.
Now all that isn't to say a 5er wouldn't be a better choice for you or not, just that this blogger is going off of emotional justification rather than actual data.
1975 American Clipper RV with Dodge 360 (photo in profile)
1998 American Clipper Fold n Roll Folding Trailer
Both born in Morgan Hill, CA to Irv Perch (Daddy of the Aristocrat trailers)