Without having been there and seen the whole thing from start to finish it’s impossible to judge, hence why people here are rightly showing understanding towards the position of the guard.
I’m always rather suspicious of these emotive broadcasts- for a start let the TOC deal with the complaint then by all means use the media if not happy with the response. Whenever the media, especially social media, is the first resort then in my view it at best devalues the complaint, and perhaps raises doubts about its validity. Especially as it will always be selective in terms of what we see and hear.
And, regardless of the rights or wrongs, many people watching will think wouldn’t it just be easier if such people just weren’t allowed to travel in the first place?