I agree that the final episode wasn't great and am struggling to see how they can do a second series given that this was supposedly based on a couple of murders. They were loosely based on them but nothing like the original murders which also didn't happen at the same time as far as I can remember. Edit - I was wrong about the times, they were within 11 days of each other - so much for my memory
The bloke Gary who was shot with the arrow was not realistic in my opinion. There was no way he'd still be going to the same club that many years after the strike and still calling people a scab. He'd have been slapped many years ago and slapped time and again until he either stopped or went drinking elsewhere.
That many years after the strike I never noticed any of this sort of thing in the pubs and in my local area, strikers and non-strikers were drinking together and it was never really mentioned. I have read about families being split apart by the strike but it's not as common as they are making out.
I think the writer started out with an agenda and I just hope it doesn't make old animosities boil up again. It was disappointing as well that none of them mentioned what I heard many working miners say at the time - if they'd have been given a vote, they would have voted to strike, but they were not given a vote, they were told they were on strike and that pissed them off.
PS - I have never been a miner and wasn't part of a mining familly but most of my mates were.