@T1Dmama
I struggle to believe how moving two people would make any difference
It will make a very small difference.
I know it all sounds trivial but if the original load and balance calculations showed the aircraft trim was just, fractionally out of limits then the load coordinator and/or certainly the aircraft captain has no choice - something/somebody has to be moved to get the calculated trim position inside limits:
Pretty much worldwide that’s a legal requirement, for example the UK Air Navigation Order 2016 is quite clear about it:
”The pilot in command must ensure that during any phase of operation, the loading, the mass and, except for balloons, the centre of gravity position of the aircraft comply with any limitation specified in the flight manual, the weight schedule required by article 43, or equivalent document.”
Given the above certainly if the captain decided not move anybody and the company or the regulatory authority pick it up in a check or an audit the captain would probably be looking for another job, and possibly the loading coordinator.
Yes it’s a PITA but the reason why scheduled flying is as safe as it is is because of attention to detail/nit picking like this.