Haven't seen it, but you are right, there are some controversial issue that Bandha caused divisions in the Paanth about:
- Changing the Sikh greeting to "Fateh Darshan"
- Stopping Sikh from eating Onion and Garlic (something some Hindu sects pratice).
- Causing the first controversy over the meat issue (he was a strict vegetarian).
- Changing the flag colours.
- He still had his old Bairagi tendancies, and tended to unwittingly cause Hindu pratices to creep into Sikh philosophy.
In terms of good things:
- He had mostly lowcastes like Labanas' and Dalits in his ranks.
- He professed total equality.
- As a warrior he led by example.
- He brought Jatts into the fold in large numbers.
- He formed the First Sikh Kingdom and struck a coin in the name of the Guru's.
