From what I hear (mainly info/hypotheses from Scott Ritter in this case) Russia was pretty careful to honor the letter and spirit of existing contracts, and why would they not?  There are plenty of things for which contracts are not drawn to get going on the Ruble (and hopefully BTC) stuff.  If Germany cannot or will not honor their side of the contracts because they feel the need to kowtow(*) to Washington, oh well (shrug).

Russia seems to be playing the 'reliable partner' angle recently (last decade or so.)  In other words, they do what they say, say what they do, and don't make up shit out of whole cloth as a matter of policy recently.  If one wants to have a trusted currency, best to neither make it non-fungible or inflate it to worthlessness.  If you are going to do that [cough, 'U.S.', cough] you better be damn sure that you've got enough leg-breakers to force most/all players into your racket.  I don't think they do.  Not anymore.

I do hope that the U.S. and Western minions stick to their guns AND that Russia is serious about BTC.  Huge opportunities to broker/supply liquidity for transactions since things like fertilizer will be dirt cheap in Russia even while the West is in the famine-zone and the products are in high demand.

* Kowtow - 'To show servile deference.'