AIUI, In English cases, the plaint is normally filed in the jurisdiction of the plaintiff.
The defendant has the right to ask the hearing to be moved to "his patch"
Of course, should this happen and the defendant lose, he'll likely be lumbered with all the Plaintiffs travel and accommodation as well.
No TV so not seen the controversial programme, from the discussion on here, it would seem that the big stick is being used to supress dissent.
I hope the sacked former employee is awarded enough recompense to afford a long and happy retirement