If the PS3 died while Skyrim was being played then it was more than likely the OP's fault for having a system that wasnt properly cared for, the PS3 is almost never reading the disc while you're playing (Unlike MW2.5's Multiplayer where its reading the disc every 4 seconds), if the system died its not the game's fault its probably yours for letting it overheat.
And if you're using an old fat PS3 it was just a matter of time, the thermal paste in those systems wasnt the best and those systems heated up way more than a console should, if you had one THIS long then be glad it died now, thats quite a track record in itself.
If it was a Slim and it died, its more than likely you.
Again, games dont cause system failure. Faulty hardware or faulty owners do.