Please learn to dissect your paragraph, there's more than a few things lost, diplomacy in Bannerlord is nonexistent, kingdom management is non existent or lackluster, the game really needed ministers for running your own kingdom, treasury, patrols, policies and much more they add.
But that's all minor things when compared with full conversion mods, something tells me Bannerlord is never getting any, just more difficult to make them due to the graphically advanced engine and lack of proper tools.
If we are to compare Bannerlord against Warband with mods like Clash of Kings, Brytenwalda, The Last Days of The Third Age, Gekokujo, it can go home and pack right now, it doesn't stand a chance with it's nexus mods.
Warband is still the best they have made and it's a complete game which is a rare delicacy these days, Bannerlord offers improvements in inventory, interface and the character progression system (when it works) but this is all nothing compared to mods that offers new worlds and settings within Warband.
With a few more years of development Bannerlord could be truly amazing, and therein lies the problem, it won't get the time it needs to complete and without complete modding tools the game has no future.
The game for sure needs more time in the oven in development because it's missing so much older games offered.
The questing is boring now, they seem to make it so easy now.
herding for example in the original M&B a cow icon would pop on the map you then had to try and move it in the correct direction by sorta pushing the animals in the right direction across the map with the party which could prove to be problematic because you were likely to run into bandits moving wild cattle over long distances.
Then they changed it over the years from mods to the cattle auto followed you instead of herding the animals the right direction.
Bannerlord it's dumber still Cattle just sit in inventory, Horse's now add to carry compacity while other cattle just add weight to that compacity.
You used to have an inventory skill now it's more based on how many horse's you have spare in inventory rather then skill.
The new Tier System has slowed game pace down were the game had more freedom before, you were not restricted by tier level having companions you only required attribute & some skill for leadership.
Companions have no personality like older games which wasn't much anyway, they could of improved personalities in Bannerlord & quests related to them for loyalty bonus. The A.I for companions is the exact same from M&B 12 years ago, dumb as a door nob & weaker then a toffy coated apple.
While there has been some improvements in looks i see a backward step in core mechanics of the game which had built up so much over the years with world mods and the ideas implemented in some of those worlds. Warband is a solid game with a bulk of great world mods to back it.
I feel Bannerlord is still majorly under construction as they are constantly updating & changing the mechanics so much so at times it puts me off playing, it was also the reason i stopped creating mods way back with warband because they would break world mods with new code they changed core mechanics you had changed for a mod.
I would say Wedding Dance from the original M&B with censorship patch still has better gameplay then Bannerlord with it's fancy graphics and boring new system. Warband i would say one of the better worlds i have played is A WORLD OF ICE & FIRE... a Game of Throne's world mod for Warband that i highly recommend.