It really comes down to how you choose to look at the deal.
When I lease a vehicle I know there is very little chance I will end up purchasing the vehicle at the end of the lease. Therefore, regardless of if I’m paying depreciation or interest it doesn’t really make a difference. Ultimately the cost is the cost regardless of how it’s broken down.
Should you expect to purchase the vehicle at the end then residual does matter, as that would be your purchase price. In that instance you want your lease payment to pay down as much depreciation and as little interest as possible to maximize your dollars.
In the instance of the hummer the residual is wildly inflated (I’d guess by $20k or more), so I know when I hand in the keys GM is going to have to eat that loss. All of that to say I was happy with a cost of $700ish a month to use a $100k vehicle for 3 years and then hand the keys back regardless of if I was paying interest or depreciation.
Hope that helps with the thought process!