Ah, nothing like a good pissing match about oil changes!
I changed my oil the first time at 600 miles. It looked like new oil. There were no splooges. No metal filings. No gray stuff. Just clean oil. Same thing in the final drive.
My penny is the engineers who designed the motor know a potload more than anyone else about when to change the oil. I follow their instructions, more or less.
What I REALLY think is silly is the "3000 mile" "rule" for car oil changes. That's a brilliant bit of marketing hooey by the quick lube places. I change it according to the owners manual, around 5000-6000 miles. Last three vehicles I had I put 185k, 165k, and now have 97k on the current car, I haven't burned a drip of oil yet. The 185k one got totaled, but I actually know the 165k one is still on the road, six years after I sold it.
So far, at least, this little oil change contretemps is nothing compared to the passions one sees on the Goldwing forums on occasion. I'd hoped for a little more from the Yamahans.