I said it once, and I will say it again. Do not expect TW to make a great M&B game. It simply does not work like that. TW is still, in its soul, a small, indie, workshop kind of a studio, very far from the modern gaming companies. Their greatest achievement is presenting a unique and successful formula to the gaming industry - flesh out mounted combat experience. That is the unique selling point of the series, that is the reason people willing to sink dozens even hundreds of hours in the game in the first place. If you look for something more than that, do not expect that from TW, because they are not good at it. It is the modders' 'destiny' to enrich the game with other features.
Bannerlord is fine as it is, it is a promising mod base with great mounted combat experience. Just wait for the modders to make the game great. DO NOT have misplaced and unrealistic expectations with TW.