I agree with you and probably I should have rephrased my statement differently. But what I meant by getting work done was not the fact that Windows makes it easier, or Linux more difficult. I've meant the whole experience. One example:
This reminds me of the time when people used to complain that printing on Linux was difficult, or that there were not enough drivers for external hardware. The common answer from Linux fanboys (including myself) was "blame the manufacturers for not supporting this printer or this (pick your mp3 player, video camera, kid's toy, or any non-working component)". Now comes the tricky part of life: most people don't care about who to blame. They just want to put some dollars on a table and get something that just works. They don't want to do anything. Sure: Linux supports many peripherals out of the box better than Windows. But many people have come to accept popping-in a driver's CD to get the thing working, while they have not come to accept that I cannot set my printer to print in full duplex afterwards.
So I didn't mean that Windows is better, or Linux worse. I've meant that sometimes you just can't replace Windows, because of what it delivers as an ecosystem. Some people need that and you cannot replace this. My examples above tried to illustrate this.
As for your example, Android is easy, sure. But have you tried printing something from Android? My father for instance, kept a laptop around just to be able to listen to his favorite online radio. Of course it is the website's fault that they require some windows-only plugin. But my father doesn't give a shit, he just wants to listen to this station, and there are no substitutes. There are many articles about replacing a PC with Android and almost all the ones I've read consider the experience subpar (one was in Arstechnica, you can Google it)
You can only educate users up to some extent. Beyond that, you can blame the users for not trying hard enough, or yourself for missing a business case. Your choice.
I hope you realize that I agree with you. But the key point is to realize that many non-techies do not, and they are not necessarily wrong either.