The Japanese pride themselves on fish prep and presentation. I don't believe I've ever seen a video of a Japanese fish monger "V-boning" a fillet. Always with the tweezers to pick and pull out the tiny pin bones from their fillets. Also, I'm pretty sure most domestic salmon fillets are prepped this way as well.
I was just talking about this with Capt. Mike Bady on a recent trip on my boat. He, (as I), just doesn't have the patience for such niceties. But no doubt it makes for a far more attractive fillet.