Eliminating all random factors turns Wargame: The Tournament into mindless grinding.
Wargame: The Tournament is, in a way, a competitive game (or at least aspires to be). For those who enjoy leveling up in Heroes, who are annoyed by losing due to neutral morale, or who don't want to play on slow maps, etc. The Succession Wars is 50% for those who like to relax and play Heroes after work. Why others play it, I don't know.
So, take, for example, Starcraft – even there, pros engage in mindless grinding. Tennis players practice strong and accurate serves, chess players practice openings, etc. If you don't like grinding, play The Succession Wars, be a noob, play in such a way that with 300+600 on the limit, you have 2k time left after the game. Wargame: The Tournament players don't care about your opinion. I don't know what kind of idiot you have to be not to understand the things I've outlined above.