It's the same thing as what the Steam representatives were saying, and it makes sense because they're in the business to make money and not try to play games (get the pun?) with their operations. If they are finding it harder to make money off of a payment method then they will be inclined to drop it and either move on to something else or remove it from their accepted services until the issues with it can be sorted out. I'd rather wait for more companies to get comfortable with Bitcoin than try to force them to accept it when there is no need for them to do so.

It's kind of annoying that they won't accept it right now but I respect the decision and it makes sense for them to do so. Hopefully they return to the community at some point in the future.