Y'all are overreacting a bit. I think it's a glitch / very temporary.
The song is still avaialble to purchase individually on Amazon & Google Play. If they were full fledged about getting album sales out of it, then they'd go ahead and take it off purchase everywhere.
It also got removed during the middle of the day. If a label is gonna take something off iTunes or make it limited, I believe that it'd be put into effect at Midnight. It could just be a small glitch or something very temporary for whatever reason. Like when Blurred Lines was taken off iTunes for 1 day and was album only and everyone freaked out?
If the song still isn't available by tomorrow then I'd start worrying.
