Just read this
& would like to know how an update can be pulled if its been installed?
The update was pulled from distribution. This means it was taken away so that it can no longer be downloaded. People who downloaded it will have to revert back using the ways provided by Apple. For example, they can use iTunes. But Apple cannot remotely remove it from a device.
Ok & thank you. I figured apple might release an update to remove it, but I'll accept your answer, thank you.