Wasn't Roberts about to be let go, so as part of the turfing out process they tried to kill his finisher?
They did the same thing to Bam Bam, I think something similar with Diesel, too.
It's just something they'd try to do before letting someone go. The Savage situation was probably just the way it was booked also, but yeah, it was overkill.
Roberts was set to be released, yeah, and so Taker got to bury the bastard good and proper.
And what a job he did.
UYI