The show was very expensive to produce and though popular not close to shows like breaking bad or thrones so the numbers financialy just couldn't work long term so with that said I think they did the best thing by trying to bring everything together in this last season I thought the flashbacks were great it showed that hard choice nucky made to move up in the world and that choice to give up a little girl to be sexually abused, a girl that trusted him and he pledged to always look after always haunted him.the sheriff before him a family man with children couldn't do it any more nucky made a choice that ultimately on the show got him killed. It wasn't the ny mob who put a hit out on him it was Julian once he refused to get her out she had her grandson tommy do the hit. Better ending then a black screen.