I know you said usually, but that rubbed me wrong as well....
I rescued Molly as a three year old, and she needs pee pads, they DO NOT make my house stink and I am far from lazy...
She flat out refuses to go outside when the weather hits 20 below no matter how good a coat I put on her, she will not move but stand in one spot and shiver lifting alternate feet until I pick her up. She is a 3 lbs soaking wet and is thin, not for lack of trying, but that is another story.
In the summer she will go out, but not in winter.
The other reason we use pads is because she is a problem eater, when I leave for work I put her kibble down and leave her loose, so she can pick at it all day while the other dogs are crated, she often can't make it until I get home and will use the pad, it has been the best way we have found to get her to eat more.
I think like someone said, with teeny dogs it's not much different than a litter box when looked after properly.
As for the potty patch, not sure I'd like that, I could not get the video to load, so did not watch it, however I like that the pads are easy to deal with, not sure how you'd manage the patch.