If you read the article carefully, you'll find that it's a minority opinion and not well studied.
If you read the article carefully, you'll find that it was just presented five days ago.
That might clear up your 'minority opinion' and 'not well studied' confusion.
It's a brand new study whose results are (supposedly) a lot more accurate than what had been found previously. No one is claiming this is the end-all, be-all to MMGW as far as I can tell so you can keep up with your the-debate-is-over-we-have-a-consensus-GW-is-now-fact-all-deniers-are-Nazis-and-Confederate-sympathizers rhetoric ...