. Russians pissed off at the loss of a major customer, and wanting to creat a false flag is more likely.
It makes it impossible to count on any German weakening on its Ukraine policy. Putin and co seem to have been counting on breaking up the Euro consensus through the economic costs of the gas shortage. This was a very short term bit of leverage, as they were losing this market for certain.
Thats off the table now, no more short term leverage.