You are arguing that as a SSS you get to decide who is safe and who isn't, and you don't! You cannot judge someone as not worthy to run on your course!
You get to decide if a course is safe for all competitors within reasonable expectations.
This is not semantics, it is a clear distinction to make sure competition is fair for all competitors and a SSS authority dos not affect individual competitors unjustly.
I am not saying you have to run an unsafe event, but a SSS cannot tell a driver how to drive just because they don't like it.
Either a course is safe for all Solo vehicles or it isn't.
If a driver is not outside the boundaries of the course, you have a hard time convincing me they are unsafe or jeopardizing workers or spectators.
If they have left the course, spun multiple times, disrupted the event or such, the stewards may well have recourse with the driver, but that is not what we are discussing!
If they are within the boundaries of the course approved by the safety steward, how can that same safety steward logically claim they creating an unsafe situation?
This appears to be your logic... Course is safe for all solo classes and competitors. A competitor is driving within the course. SSS doesn't like how the competitor is driving. Therefore the competitor is unsafe. Please Venn diagram that for me would you????