The firm behind them is actually "new" to RVs, but "old" to cars/pickups.
The buyer is paying for this "forever" warranty, the insurer is making money. Which means the insurer is taking in more in payments then it is paying in claims.
My Grandfather, a self-made millionaire (years ago, when it was tough) said
"Never insure something you can afford to fix/replace.
Always insure something you can't"
2008 F350SD V10 with an 2012 Arctic Fox 29-5E
When someone tells you to buy the same rig they own, listen, they might be right. When they tell you to buy a different rig then they own, really pay attention, they probably know something you don't.