[Tyrannosaurs]

Because some of those devices are cheap and sell (see the Kindle Fire as one example - massive sales, really not great - and yes I know it's a fork but it's still Android at it's heart).

Does that make Android crap? Obviously not but it does mean that there a hundreds of thousands, if not millions of people who have that perception (and are right because for them it has been crap).

Excluding the crap ones is no more a representative picture of things than excluding the good ones would be. Android is the sum total of all devices running with all the good (huge numbers, some great devices out there) and bad (fragmentation and massive variation in quality) that that entails.