Is there another sport where the on-field ref has so much to say?
As soon as the whistle blows the RL ref is yelling instructions. I appreciate that they have call out the number of tackles (although this could actually be done from an off-field official via a microphone). But then it's "Milking", "Surrender", "Wait", "Let him up Jake..."
I'm waiting for a RL ref to be forced to retire because of a sore voice box!
I'm also anti the way the refs use each player's first names. Numbers should suffice: "Number 13, maroon" etc.
A ref/umpire is there to make rulings, not give instructions. That is the coaches' job.
I do think a RL ref is expected to do too much. Reducing the onus of teaching players the rules on the fly would lessen the ref's load and lead to greater clarity in decision making.