It also points out the effects of economies of scale.
The plant I work at has a total capacity of 1725 MW. We have about 200 full time employees, or over 8 MW per employee. So, if FF is in 5 MW blocks, you could have about 1/2 of an employee per block for the same staffing levels.
This would be challenging for a site with a well set up operations and maintenance staff. If it had to be done with remotely, where a crew has to drive out to check on any problem, O&M;labor may be the limiting factor for power cost.