The references to the Graham Hill accident are from a historic accident where the main issue was a miscalculated approach into Elstree,
I humbly beg to differ. Painful as it may be, apart from cavalier attitudes to keeping their ratings current (they weren't), the main issues in both the the Colin McCrae and Graham Hill incidents were two pilots who had higher opinions of their skills than they, in truth, had. This caused their deaths and those of eight innocent members of the public flying with them.
The ignorance or imprudence of an overconfident pilot is, more often than not, the first step into the incident pit.