Of course not. The sanctions are the punishment put on Russia for not falling apart after the Cold war, they keep piling up regardless of her behavior.
Seems to defeat the purpose of using sanctions at all.
And they were coming regardless of the Ukraine situation.
Three things to note:
They are not cutting Russia from SWIFT — they are cutting off many Russian banks but not the ones that deal with energy. LOL.
Wait for countersanctions — I do not think this would take long. There are very interesting options for Putin.
And yes, $10 gas is coming this year. Maybe, $20.