Many years ago when I rode a Honda 175 motorcycle, a work colleague who also rode - a Suzuki 500 - elected to overtake a line of slow moving vehicles we had followed for some distance along a winding road... he was already a little distance ahead of me.
https://maps.google.com/maps?q=ambleside+cumbria&hl=en&ll=54.423699,-2.976383&spn=0.003414,0.010568&sll=53.472423,-2.239765&sspn=0.02774,0.084543&hnear=Ambleside,+Cumbria,+United+Kingdom&t=m&z=17&layer=c&cbll=54.423741,-2.976168&panoid=PLu8GJv9l18UOYwaFITukg&cbp=12,91.99,,0,-3.65Three vehicles into the manouvre, he was confronted by a pedestrian who had decided traffic was slow enough for him to dart across between cars - and he ran into the handlebars of the bike, which resulted in a badly broken arm and ribs for the pedestrian, and a dent in the fuel tank where the bars had been forced back!
My colleague was tipped off, but had only cuts and bruises.
I happened along a few moments later, having been cautious for the whole of our journey from Coniston.
He was blaming the pedestrian for not seeing him, while everyone else was accusing him of going too fast.
The truth is of course was that both had failed to consider any other possibility other than that they could take the course they did without encountering anyone else!
His action was the worse in my opinion, as his acceleration could have resulted in taking any number of other road users by surprise, which he SHOULD have anticipated.
I rather suspect that this case occurred in similar circumstances, and could have been avoided if Dyche had not been so impatient as to ignore the potential for other road users to follow their own course - as anticipated in the section of the Highway Code I quoted.