Salute!
I am not all that hyper about the IP filling all the training and currency squares as I am about "personality", "reputation" and such of the IP.
I infer that the "board" had clues about the style and record of the IP. Maybe testimony from students? Check rides by other IP folks?
If the IP was "loose" and maybe very agressive, then that could lead to letting the student fly a bit lower than most of us would wish. But the debris field seems more like simply trying to fly 5 feet lower than the dirt. I cannot find the original thread, but seems I recall it was a Sunday and the folks had gone someplace and spent the night or two before returning to Meridian. A common scenario, and one that many of us experienced to get the nuggets trained to see strange fields and various ATC procedures and so forth.
Regardless of all of the above opinions, I lean toward lack of supervision and folks not telling the IP to 'back off' as contributing factors.
Gums opines...