Its an explanation that is 100% accurate. Experience counts for a lot. There are many people who change their tune quickly when they put on the stripes and ref a ice hockey game. You can discount it all you want, but like it or not, its an accurate statement.
Also, I am not over trivializing it at all. In fact, in the quote you posted, I said 98 times out of 100 it would get caught. I may even go as high as 99 times out of 100, because you don't see this kind of thing except maybe once a season. I agree with you that its shocking that it was missed, but at the same time, it doesn't surprise me because the refs miss things all the time. Back in 09 when the Penguins had 6 people plus the goalie on the ice for that power play, everyone was asking, "How could they miss that?" My answer remains the same, because they are human.
I agree with what your saying and understand that refs miss stuff all the time and its only natural they do, simply because they are human. I just want to bust your chops a bit
It's tough to say that they would catch this 98 times out of 100, because right now they're 0 for 1 in as long as I've been watching.
Also, I may be mistaken, but didn't the refs catch the Pens on that 6 on 5, and actually yell at someone on the ice to get off for like 20 seconds before they did? That seems to be my recollection, and part of why it was so controversial.