Pretty simple.
You did not take your own advice when changing the tires on your truck to something different than stock.....There was no need to "reinvent the wheel" as you said.
Even though going to larger tires and a lift on a TV makes it LESS capable as a TV, you still chose to do it.
OTOH. There are no downsides to going to 16"rims on a trailer other than up front cost. A single blowout can make that cost look cheap.
It's a free country, one can do whatever they want with their money...I am just pointing out the inconsistencies of your logic.