I think that's a decent summary of what many think 're BG vs BP. I have said a few times before we are very lucky in having a permanent set up so there is no rush when It comes to gaming, if a games lasts a few sessions so what, if we only get one move done because Ian wants to outline his latest Car Insurance ideas (trust me he had to be there ?) It doesn't matter.
It's me being "old school" but I just don't "get" Black Powder, the same way I don't "get" Hail Caesar, every period seems to play exactly the same with some period amendments chucked in as an after thought. Don't get me wrong having similar rule sets for different periods can be a bonus with less concepts / game to learn as the GdeB, BG, Die Kreigskunst family show.
Horses for courses ! Don't get me started on Bolt Action.
Regards Ken
The Yarkshire Gamer