SS
I am very familiar with the airfield in question but obviously can't comment on the particular incident - not being aware of all of the details.
For the benefit of others the operating procedure there when using the South westerly (which not all follow it is true) is to continue ahead to the intersection / 'C' hold then check approach clear before back tracking. In the event of not reaching 'C' hold before ready to back track a 90% turn to check approach clear then either continue the turn to backtrack (if clear) or return to original heading and clear at 'C'.
There is no requirement for radio calls to be made by all (and some are non radio) so radio silence can not be taken as an indication that the approach is clear.
There are adequate hard surface 'run offs' at either side of the runway if emergency avoidance is required but back tracking these whilst landing is in progress is not advised. There is also a long taxi way from the 'C' hold to a perimeter track which avoids the need to backtrack.
Not seen 50 ft ACROSS the runway at this location but 50 ft down the runway sometimes.
Aeros, unusual circuits, and formation activity often to be found but mostly not at the same time as visitors following more 'normal' procedures.
I have learnt - thanks largely to making mistakes - that if you want to do things differently it pays not to annoy people in the process.
I hope if you visit again you will get a more friendly welcome.