This seems a very likely outcome. The EU obviously has no other "weapon" than sanctions. In my view, it has become a social media popularity contest. Let's punish everyone in Russia financially so maybe there will be an uprising. And, let's top it up with a free for all hunt on the assets of oligarchs. Is it anything else than the popularity contest playing out? Maybe it's ultimately like you say: about control of the oil and gas coming from Russia.