You guys are getting all tangled up in your underwear over wording.
Some of the more highly respected TT manufacturers supply LT tires, or the option for them as factory equipment..
If it's good enough for the likes Arctic Fox and others in the higher end class, why wouldn't it also be a upgrade for the lower class TTs?
Seriously, there is NO REASON to act like lemmings following the bad advice on tires that the original manufacturer stuck you with.
As far as "they are the engineers" so they must know what is best....
Another laugh. The TT industry is full of bad engineering..
It is everywhere in these forums.