While I'm not a worker on or near the railway, I'm still watching this with more than a passing interest.
I work in a busy food production factory, and in the section I work in, it is very busy, with forklifts and electric palletisers being used very frequently. Near misses and accidents are taken very seriously, and I generally feel safe working around everyone and everything that's happening.
However, if this guard is found guilty despite following procedures*, then I fear both the rail and haulage (and associated) industries will go to hell and beyond. The worst case example, in a warehouse or order picking/despatch part of a factory, then no one will be allowed within 5 yards of operating machinery unless authorised to do so (machine minders for example). That would make my job as an order picker impossible as there is frequently an electric palletiser in use very near by.
*I'm making no allowances for anything the CPS may or may have not found.