Here's the problem - it rests on the bones of M&B which had serious early game issues.
Warband really resolved most of those problems, but this game is based on M&B code and they did not bother to merge warband base code. THAT is the major problem, in that now years later it's rereleased old code in the US.
We're comparing it to, and have expectations of a game that came out AFTER it with numerous fixes and improvements and of course it falls short, as it should.
While it may have been a worthwhile commercial effort when it was originally released, there needed to be more effort made on merging the warband base code. To charge money for it, that I think should have been seen as a business obligation.
The lack of doing so, I think is the basis for the poor initial impression.