This is a fantastically badly timed article, given how the Russian “second army in the world” is literally fleeing in masses as we speak. Which means, Russian gas might soon became unprecedentedly cheap.
The Russian economy was also supposed to collapse months ago based on how the sanctions were portrayed. It makes more sense to not assume too much too soon.
It might, or Russia might set off a nuke in the next month. That's their doctrine for when they're losing conventionally, after all, and they've certainly threatened it. If that happens gas is going to go sky-high, as we'll probably be immersed in WW3.
Hard to predict the future, particularly in times of crisis. I'd expect expectations to ebb and flow like they have since the pandemic started.