Have you thought that WoT was never meant for e-sport? Or not until the fans and players started to create their own leagues and started to play on a more professional way.
Another mistake in the early days of development were matches 7 vs. 7 which were impossibly long games often ended in draws. So the rules and matches were remade and as you surely know World of Tanks is one of the dominating games on Twitch and not just there…