Honestly this isn't surprising. The consoles have gotten away with low frame rates, highly varying frame rates and bad latency and low resolution for about as long as I can remember. This has always been frowned upon by the PC users but dismissed or even applauded by delusional console gamers.
But VR demands these things for a good experience and now the console hardware is so far behind that it can't keep up, they need more processing power to keep up. I was saying as early as the Morpheus announcement that the consoles simply don't have enough horsepower to run VR, low and behold.