A board makes decision by majority vote, and it’s not unusual with employee board representatives.
Some background, don’t know if they exist in England:
https://en.m.wikipedia.org/wiki/Worker_representation_on_corporate_boards_of_directors
So it’s not the oddest idea from my POV. Do I think it would impact things? Nah. Clearly any owner would control the majority. And I mean SAF is on the board right now (I think).
To have a real impact, you must be able to impact the owner. Most issues are money issues.