Exactly my feeling. This is a game, with some areas working very very well, and others not working at all. For some people they earn their miles very slowly, and once they hit 25k they make the incorrect assumption that they can then fly anywhere they want, at any time of year for free. I've always said with miles you get to pick any 3 of the following:

1)Destination
2)lowest mileage redemption
3)dates
4)class of travel.

People who get hung up on not getting to pick all 4, every time they go to redeem are being pessimists.

If there are no seats left for miles I can either decide to pay cash or not go. Miles are not a magic wand that give you everything you ever wanted in travel--they're a tool that goes along with cash to help save me money, give me travel flexibility to change dates, or let me fly in more comfort than I can afford with cash.

That said, I hope people everywhere read this article and get turned off. More miles/seat availability for me.