If the season ended now, Reilly would get it obviously and it's not even close. He can very easily lose it though, the Norris historically goes to players who would've deserved it in the previous season and who are more "established" names (similar production over multiple seasons), thus I think Reilly needs to maintain a gap of 5+ points vs the likes of Burns, Carlson, Letang, etc to win it.
Carlson should be the second favorite. I doubt Gio or Chabot will even be in the discussion in a couple of months. Burns might go on a tear and simply rack up so many points that he'll be the winner, but I'd choose Carlson over him as of now.
The aforementioned is based on the factors actually used to determine who wins the Norris, not on who should win it in an ideal world. Chabot, for example, has almost no chance because he plays in a bottom feeder team and is -3 vs Reilly +25, Carlson +21. It's just the way the cookie crumbles, sadly.
Also, the list in the article is dumb and the writers seem pretty clueless.