Fair points.
I agree with most things that have been said constructively in the posts before this one. Here are some of my own points:
Class system: I understand why they implemented it, and it does make the game more balanced and easy to work with, streamlining it for new players. I mean it sucks for us that they made a pillarstone of Warband's mechanics into something different, and made it less fun to customize etc. I think the major danger with all this, is people will simply get bored of the multiplayer gamemodes if they don't release dedicated servers and more gamemodes soon. Running around swinging your sword endlessly didn't work for Mordhau in the long run, and it won't help Bannerlord either. We need the things that made Warband so enjoyable for such a long time. The big battles, community arranged stuff etc. This isn't possible on the current gamemodes.
Combat: I have no quarrels with the combat itself. Shield bashing should be blockable somehow, and chambers should be doable with timing like in Warband. Damage values can be strange, but overall I prefer Bannerlord combat to Warband. It just feels more intuitive and realistic when you get used to it. At least to me. (Despite the flaws).
Matchmaking: Stop putting players with 7k hours against new players. If the class system was made to make it easier for new players to get into the game, then don't put them against players who no-life the game like myself. As an example I have 47 wins and 2 losses. I feel bad everytime I win, playing with my try-hard buds, some of whom are competing in those pro leagues on Warband. Often we play against the same team 5 times in a row, absolutely ruining the game experience for them. This needs to be fixed. Otherwise every new player who tries to enjoy the multiplayer game will be turned off it. Or they won't get to enjoy the game as much as they could. As a new player, I wouldn't enjoy being pushed against the top 5 % of the game over and over and over. It gives people a wrong perspective of the game.
Ignore the humble-bragging above. Felt it was necessary to get the point across. Maybe it wasn't. Might've just been obnoxious.. Oh well... Appologies.
I trust that Taleworlds will iron out these issues before full release. Even better, release dedicated servers and mod-tools + mapping to the community and let them do the work if they don't want to. People will grow tired of singleplayer eventually, if they care to make this game last a long time, they will fix Multiplayer before it's too late. The more power you give to the players, the longer they will enjoy the game. Class-system is a detriment to that.
Competetive scene: Warband's scene is impossible to create on the current game. Either the competetive scene has to change alltogether, or the game must undergo huge changes / have Gamemodes added that actually cater to competetive playstyles. You have great examples of how to do this in Warband already. Look at how dedicated servers and communities / clans are able to organize clanwars. They can't do that here.