When I lease a new car repairs happen under the warranty. The manufacturer is “on the hook” for fixing the car. Not necessarily because it is leased but because it is under warranty. Leases are a way to always have a car that is under warranty.

You are replying to a counter argument to the claim that leases are always a bad idea.

The article this thread is on is a strong counterexample to your assertion. You may very well end up on the hook for a repair that isn't covered by the warranty.

They're on the hook for the finance, if you're leasing.

If you're talking about a short-term rental to pootle around in for a while: they're on the hook for the car itself, because that's now a car they can't rent to someone else.

If they weren't on the hook for anything, there wouldn't be much of a business.