While I agree Bannerlord has things to learn from Warband. It's a little ironic don't you think?
Afterall bannerlords player count is consistently a massive improvement over warband; even during Warband height;
Aside from 2 surges in playercounts; Warband averaged around 10-12k players consistently for a decade. Bannerlord (even after all this EA period); averages around 20k.
There are plenty of reasons to suggest Bannerlord is a lesser sibling to Warband; but playercount can hardly be listed as one of them.