If there are so many "near misses" why have no passengers (who witnessed or were involved with them) raised awareness of any of them, e.g. via social media or their local press?
In my experience, many passengers involved in near-misses have not the foggiest that they have been involved in one. They don't even care.
I have dragged people away from walking heel-to-toe on the white (not yellow) line on the very edge of a platform because they were facing the wrong way and talking on their phone, and were about to be wiped out by a train at 90mph. They walked away without so much as pausing their conversations.
I have had school kids and people riding bikes come within inches of pretty much certain death by being stupid in the dispatch corridor - the wrong place at the wrong time. When I've intervened, I can't think of one of them which has cared.
I have had people lean their full body weight on a train where the guard caught sight of them (where a driver wouldn't, dispatching similar stock) within milliseconds before they'd have given the ready to start signal. Said people would have, for certain, fallen into the gap and been struck by the wheels if platform staff had just given an RA and the train was accelerating away.
I am aware of a particularly vivid story about a lady putting her head into the gap between carriages (platform side of the gangway curtain) of a train on the Southern network last year, on a line which is now DOO and on stock where the cameras don't adequately cover that. The guard was just closing their local door and was keeping a good lookout. Had they not, the lady would have probably been beheaded.
I am aware that a DOO train with a vulnerable, ill passenger at a major, staffed station came within moments of dispatch being completed because there was no procedure to make sure the information was handled correctly.
Passengers wouldn't report these things because they never saw the hazard or reacted to it, or else they saw something was in place to safeguard them - on that occasion. Maybe not the next.
This sort of thing happens every day, particularly on dark winter weekend evenings or boiling summer afternoons or in the school run, all of which are times when a dedicated person should be looking after passengers, which can be more necessary during station work than any other time. At these times it is quite hard enough for a driver to monitor safety issues concerning driving, let alone dispatch. Very little, if any, kit is available to cope with all the varied idiocy and ignorance which a small minority of passengers come up with.