Worst case scenario this game is being developed by a executive cookie cutter design plan to get sales but, if the community is angry/passionate enough, the executives may not be confident enough that they will make a ROI or a chance for a sequel once the game comes out. They will make changes to ensure success.
The truth is that there are people who love making games on this project and maybe even some Warhammer fanatics; by giving them feedback, you give the developers something they can show the executives to persuade them in the right direction.
There is still lots of time in development left and they can always take a bit more time if needed.
Relic/Sega is not a two bit company, give the constructive feedback you have and the developers will do what they can!