Buy to let - did we just get greedy?

A recent story in the Spectator highlights the fact that buy-to-let was not a bad thing. Infact if it wasn't for the aggressive lending tactics of the banks, it might have gone along swimmingly.

Were landlords greedy or were we just exploited? Is buy-to-let dead or is now the time with the froth being rapidly skimmed of the market be the time to buy?