Yep, you can certainly buy ICE generators that are also not suitable as home backup solutions. I wouldn't use a 3.5kW generator for that either. I mentioned it because you can get 2x the solution for $245.99. The Hyundai V2L adapter is
$259.99.
The key phrase here is "below the V2L power limit". Given that power limit, using phrases like "power your home" are disingenuous. Unless your home is a box with a mini-fridge and an induction hotplate; only used on low.
Honest alternatives are more like "power your fridge", "power your freezer", or "use your microwave" while the power is out. Just don't try to do more than one of those at the same time
.
Put another way, it can definitely work in a pinch to literally keep the lights on for a long time. Just don't ask it to power more than 1.5kW (1 standard 120V circuit). The fridge, microwave, HVAC blower, sump pumps, etc are all on dedicated circuits for a reason. My sump pumps are on multiple 20A circuits, so V2L wouldn't work for me, to just do that.