Yet NS was done by Ukrainian ragtag group (unless there is some new development that I missed on the case), well within the rules of war, not that anybody actually cares about them anymore. And its destruction was a good strategic move for whole Europe, otherwise Germany would be dragging their feet forever. We're happy to do business with almost anybody but if some state keeps stating how it will wipe us out with nukes then no, you don't deserve our money and go f*ck yourself.
Throwing away diplomats for a week, not sure what that would cause, probably 'meh' and continuing if the effort is intentional. Its not like diplomats actually make any serious decisions, they just parrot official policies.