I'm with Greybird! It would never have occurred to me that there was anything wrong - I would just have thought that it was a lightweight blouse. I definitely have RTW blouses with collars that are vastly worse than that.
I recently made an alteration to something I'd made for one of my goddaughters. I remembered that there had been something I wasn't entirely happy about with the item when I made it, but couldn't improve without ripping it up and starting again. I looked, and looked at it as I was doing the alteration, but I really could not figure out what it was that had so bothered me. I think we are FAR more critical of our own stuff than we are of RTW.