Goldy - I know we could go round and round on this, so this is all I will say about it. Many refs do or have tried to explain situations, but we get put into a lot of situations where we are getting screamed at or otherwise. Many times it puts us into bad situations, so we choose not to. I obviously have no way of knowing how animated Gurt was or if his voice was elevated, but there are many times where the ref has to be cognizant of the situation and understand that things might escalate if they go over there and it may be better if he doesn't, as much for the ref as the coach. As with all humans we respond to what is being thrown at us, elevated voice (or previous issues), you won't get much, kill us with kindness and we'll explain the situation all day.
I'm not aiming this at anybody in particular, but there is a common misconception that coaches have a right to "talk' to the ref, but there is nothing in any book that says the ref has to explain anything to the coach or really even the captain at the lower levels. In Gurt's situation (or any coach) he has to understand that he probably isn't going to win the argument (good or bad, very few coaches do), calm down and ask at the next whistle or period break. Personally, I put the incident on both at 50-50. Gurt sounds like a pretty good coach and most refs are going to figure that out and give him the benefit of the doubt sooner or later.
That said, kudos to anybody who coaches, I've done it myself and while it can be very rewarding and fun, it can chew you up and spit you out with the best. I've seen a lot of good coaches go by the wayside and always admire the ones that stick with it, even if I don't necessarily enjoy reffing their games.