That's a more valid reason for retaliation/ejection than the supposed election tampering.
I believe there were Russian hacking operations going on. I believe Putin preferred Trump. I don’t believe he swung the election. Nonetheless, I believe it’s not a good precedent for a hostile foreign power to hack US networks, especially for political reasons. I agree that some of what was hacked was embarrassing to Democrats because they were exposed for liars and frauds.