I mean Nintendo only have one game on that list too. What's the conclusion there? That Galaxy 1/2, Xenoblade Chronicles, Smash Ultimate, Fire Emblem whichever were all not worthy and Nintendo also need to up their game?
I think 'consensus GOTY' is kinda silly. Microsoft have released many great games this gen, never mind like nearly 20 years.
To be fair, looking at that list only paints a part of the picture. Both Mario Galaxy games still won a large number of awards (I think Galaxy 1 is 2nd). And Smash won a decent amount as well.
But you're right that GOTYs shouldn't be used an absolute barometer for measuring quality game output. And Microsoft has had decent output this gen, but definitely not as good as last gen.