Wrong. Android is very fragmented.
Oh come on. Whether what you say is true or not you cant exclaim "wrong" then not say why or how. Just looks like a child stomping their feet and yelling "no".
Facts are facts dude. Been proving many many times here. Just search.
The real question is ... How does this really affect me? Should users with a shiny new HTC One feel fragmented on 4.2.1? Should I feel my new S4 reigns supreme cause it has 4.2.2? Should all non Nexus owners cry like little bitches cause we don't get updated at the same time?
Most users make their decisions based on what any phone currently has. I didn't buy the 4 hoping for photostream and 4S hoping for some stock navigation. I didn't scream bloody murder when the 4 was excluded from having Siri. Did any of that affect my the quality of the OS I've been dealing with. The answer is NO.
If anything, I hate the fact that iOS forces you to update one way or another. For example, plenty of apps now require iOS6. On my iPad2 I stuck with iOS5 for awhile. There was no way to download certain apps unless I updated. At least with Android, any apps that state they are not compatible in Google Play, I can either install a differ app store(ex: Amazon and Slide Me) or just sideload. 9 times out of 10, the app that Google Play says is not compatible works just fine.