SKA has 23pts in last 10 home games with 6 straight wins. They have 11 games at home, only 3 away.
On the other hand, Jokerit will finish the season with a 6-game away tour.
You may say, "Schedule doesn't win games" and you are right, but SKA players are not stupid. They know how important it is to get 1st place in the division and will surely work even harder from now on. Beating SKA in St. Petersburg is not an easy thing. Well, maybe it was under Nazarov, but not now.
Jokerit deserves credit but I sincerely believe that the only reason they are on top is because SKA can't deliver. Apart from SKA, there is no team in that division to cause trouble for Jokerit. So, when SKA picks up the speed, it will be really hard to stop them. And I believe they are capable of doing it.