I’ve seen America-RN beat Santo Andre 5-1 in the shootout =)
But in that situation 3-0 would be enough and correct. Because in real life the shootout ends when it is clear who wins the first block of five. 3-0 is enough, because even if America-RN didn’t score 2 more and Santo Andre did, it would still be 3-2. So I don’t know why 5-1 =)

On RS all the 5 penalty kicks are taken, no matter the score. Yeah, I know, it’s silly…I’ll change that ;)