Maybe. It hasn't been announced where they're coming from. It could be the XRs or could be the garbage EPs and ERs that have been already been slated to be parked anyways.

Also even if it is XRs or LRs, you can't blame the TSA pilot group. They didn't vote in concessions to get it. Not like PSA. If anything it's United using the planes to whipsaw the pilot groups.