I am. And provided examples thereof. Why didn't you read my posts?
iPhone. iPhone 3G.
"Where's the iPhone 2?! What happened to the iPhone 2?!" Said no one. Ever. It was called "iPhone 2" until the real name was revealed. Then everyone instantly got over it. Go look at news articles from the month before and the month after the 3G's launch.
To say that's a poor example would be an understatement. Nobody cared that it went from iPhone to iPhone 3G, because at the time there was no established pattern or naming convention to compare it too. Secondly, the '3' was actually describing the of '3G' feature of the phone and had nothing to do with versions of the iphone. It's like calling it the iPhone LTE, or the iPhone NFC, or the iPhone Microwavablehotpizzapocket. Once you start creating a pattern like they did with the 3GS, 4, then 4S it stands to reason that when you break the pattern it will confuse people more.
At the end of the day i'm doubtful that the name of the iphone would ever have any material impact on sales, regardless.