This action only hits banks that have already been sanctioned.
If The EU and others really wanted to shake things up they'd go after the unsanctioned banks. name names, and watch the (attempted) bank runs on Monday.
From Sky News:
Saturday 26 February 2022 23:22, UK
Western allies have agreed to remove selected Russian banks from the SWIFT global financial messaging system.
In a joint statement, leaders of Europe, UK, US, and Canada, said the move was in response to Vladimir Putin's decision to invade Ukraine late last week.
The group said: "We stand with the Ukrainian government and the Ukrainian people in their heroic efforts to resist Russia's invasion.
"Russia's war represents an assault on fundamental international rules and norms that have prevailed since the Second World War, which we are committed to defending....
....MUCH MORE