Because it's a bad game and only trolls would punish themsleves by playing it. Saying there is any technique to this game gives relic way too much credit. Anyone can tell there's no technique when I see Brits spam AEC cars and one-shot squad wipes in ESL finals.
lol don't put words into my mouth, actual I'm old school Relic fan from HW1. Despite the trolls, the keyboard warriors and some tedious game play like MG spam, I love this game, I love the casting community, I love the fan art and more. There is plenty of talented minds within the community to make something great out of COH or future Relic games.
Sorry to the OP, this was offtopic.