Gaining more territory than you initially demanded, without giving compensation as you initially offered, isn't "didn't go well".
Also, they were trying a full scale invasion. All you have to do here is occupy a small sliver of Finland to perpetuate a state of war so they can't join NATO.
Against Finland? Sure it could have.
The last war with Finland didn't go so well.
Gaining more territory than you initially demanded, without giving compensation as you initially offered, isn't "didn't go well".
Also, they were trying a full scale invasion. All you have to do here is occupy a small sliver of Finland to perpetuate a state of war so they can't join NATO.
What makes you think NATO would follow the rules?
I don't. But that would mean that they voluntarily chose for war with Russia.