I think the best case you could make for Estrada is winning 2 rounds as the 1st round was competitive. But I'm not seeing where Estrada has an argument for winning more than 2 rounds ? 5-1 or 4-2 Rodriguez are the only acceptable scores IMO.
You could make a pretty good case for Estrada winning the first and the sixth was his due to the KD. But every other round was clearly Bam's.