I'd summarize it as: 2PC adds latency, throughput, and scalability constraints due to the coordinator role. If we drop an assumption (any transaction can be ab

I'd summarize it as: 2PC adds latency, throughput, and scalability constraints due to the coordinator role. If we drop an assumption (any transaction can be aborted at any time before it is committed), we can reduce coordination and get potential wins in the above metrics.