It's not his area, and he's said before that the current problems with pathing in sieges are not an AI problem (I'm not sure what he means by that, but it might mean the navmesh on the map is wrong but the AI is working fine-- if Bannerlord is the type of game that runs on navmeshes. Just speculation).
The modding community can't make much progress on the code, because it is full of roadblocks which force them to rewrite absolutely everything (taking an incredibly long period of time nobody is willing to do). People have already tried fixing the sieges, and while they got the ladders kind of working in Realistic Battle Mod, towers are still totally wanked.
Mods should be for expanding the game. If they're being used to fix serious problems with the base game, there's something very wrong.
Most negative posters in these forums still have some hope it can still get the improvements it needs to be a more enjoyable, immersive, and replayable game that isn't as frustrating, bland and shallow. I think there's a 50% chance it's going to be good by the end of EA, and a 50% chance that whatever's going wrong at TW keeps happening and the game is released left with mechanics in an unfinished or unbalanced state.
I don't hope for it to be the game where you can do anything- just Warband+ what was said in devblogs. If they can manage that I will be happy and I have always thought that was quite a reasonable expectation to have.
@Ragratt Rather than pressuring TW to release now, pressure them to pick up the pace of their work. If they release the game how it is now, I severely doubt we will ever get total conversion mods in any significant quantity because of the way the game's code works right now.