No sensible company is going to release a new console generation until the amount of disposable income people have increases. They'll either have to tone it back to lower cost to consumer allowing more people to buy it, or they'll create a top notch console that only a handful of people can buy.
Now, the following is based on some educated guessing, however in light of the fact that exact figures aren't possible it's the best I could do. If Skyrim was a PC exclusive, it would have only sold about a third of the copies. Bethesda would have known that, and probably only spent about a third of the money to develop it. If it cost, say, 70 million dollars to make the game what it is now, then that's what, 25, 30 mill tops that Bethesda would have invested in the game. Would the game have been anywhere near as good with that much cut from it? Sorry to say it, but Skyrim needed the consoles to be this good for the PC.
Incidentally this bug seems very familiar, I'm pretty sure they knew about it in at least New Vegas, maybe earlier.