It is unfortunate Professor Romanovsky's expertise in underutilized in this article.  Here is some additional information from Robert Scribbler with a prescient quote that Alaskans should ponder:

"The Russian scientists seem very concerned. And, ironically, it is for the future safety of their oil and gas infrastructure, which sits atop what is potentially a rapidly destabilizing zone. A zone that could see explosive eruptions of the ground beneath pipes, equipment and extraction fields. (One would think that the Russians would also begin questioning the continued exploration and production of oil and gas considering its contribution to the dangers they are now identifying. But that level of wisdom appears absent in the recent assessments.)"

https://robertscribbler.com/tag/methane-crater/