Agreed !
If prefetch was the issue; they could have even used AMQP's basic.get - https://www.rabbitmq.com/amqp-0-9-1-quickref.html#basic.get
If prefetch was the issue; they could have even used AMQP's basic.get - https://www.rabbitmq.com/amqp-0-9-1-quickref.html#basic.get