I acknowledge Nokia's situation in 2010, but I think you are taking the other extreme of considering Nokia already doomed by that time. By the time Elop entered Nokia it still was the largest mobile phone maker in unit sales and Samsung had just entered the smartphone sector a year before. And though a promising entrant, Samsung wasn't that big of a threat until much later.
Look at the article you linked, or Elop's memo, they don't even mention Samsung or Galaxy phones (just Android in general terms). At that time Android was low-hanging fruit to be put on their phones and leverage their market leadership. The first Galaxy phones weren't exactly a paramount of excellence. I don't think it's very unrealistic to think that they could have competed with Samsung in more or less equal terms for Android dominance.
And I'm telling this without being exactly an Android fan, but at that time it was the most sensible course of action (IMHO). They could have even tried both Android and Windows Phone (something Samsung did) and see what sticked.
Instead, they chose to stop Symbian and Meego and took the strange decision of betting the future of the company on the all new Windows Phone 7, something which can only be described as an enormous gamble. Those first phones couldn't even be upgraded to Windows Phone 8 when it came out afterwards, and I'm not even mentioning the incompatibilities between those two. Talk about a burning platform.