For what it's worth they're the biggest ovarachivers versus expected points in the league both on Opta and Undertat's versions of all that. Each of those has them in 11th.
I know I know, who cares all about that when they're getting results? Eye test would say the same though, there's been a few times when they've got a win in an even game, maybe the odd win when the other team edges it in terms of chances, or a point where they were slightly second best. Football full of variance and tight situations like that. It doesn't take much.
It's nothing scanadalous, just like the actual table has 5th-9th packed so close togehter it's pretty much the same with all the underlying stats. At least one or two of those teams will get the rub of the green, that's Forest right now which has elevated them above those clubs. More of them will be in the middle (that current cluster) and one or two perhaps a bit unlucky, Spurs 3-4 points down on those kind of metrics, a bit lower United too.
Funnily enough United v Forest was one of those games a bit like that for them and Forest v Spurs yesterday was quite even. Those results could easily have been different.
None of this means they'll fall off, even if they get "fair" results the rest of the season they've got that advanatge now.