So you talk to many of the top developers. That's great, how about we hear from a selection of them? How many devices do most of them test on? Taking QA seriously is not the same thing as testing on hundreds of devices.
So when are we going to see the other side of the "debate"? Personally, I don't see a debate at all, just some pageview-bait article that takes a single developer and makes out like this is normal.