icloud control panel disables photostream when itunes used for backup?

So thanks to this issue (https://discussions.apple.com/thread/4782118), I decided simply to use iTunes to manually backup once a day until my 90 days has "reset" (see that thread to see what I'm referring to).

However, it would appear that the iCloud control panel will no longer sync up with my photostream - is this just a coincidence or is that the norm once you choose to use iTunes for backup within iTunes, instead of iCloud? Photostream is now greyed out in the control panel...