Historical dividends yields are not future dividend yields
I haven't trusted dividend yields for decision making for a while now because I believe squeezed margins are going to squeeze dividends, and I have blogged about it in Loss of Dividend Spending.
Naked Capitalism has a post on loss of dividends that fills in the gaps a wee bit. What I mean is I stated I didn't have a clue of how big the dividend loss would be, still don't, but that post gives a bit more detail.
I think anyone talking dividend yields and pushing a stock on that basis has put little foresight into analysis, and even less if they project the dividends to increase.