Whoopee_Cushionlook at us, increasing the popularity of comp tf2 by whining about how DOTA is better supported by valve. /s
Nick brought up a good point on how Valve supports Dota though. It really does show us the impact that the developer has to have. It may seem obvious to many, but sometimes we forget it and ignore it ourselves. Although sometimes Valve makes "announcements" on their news page which barely anyone goes too, it's not enough. This shows how much value Valve puts into competitive TF2 a bit. But how about thinking, why they don't support us or think it can stand a chance?
Many other people would say it's just some hat game or some simulator, but when you really look at the community, even the people who play competitive TF2 can be immature, or spam binds, and not really care much about the game or acting professional as mentioned earlier. It's when the community is ready to grow and our pros are ready to start acting more professional as they start streaming more, we can start to develop. This may be crazy, but maybe "less use of our binds" and more "use of our potential" in how we can play this game, be mature, and represent TF2. Then maybe Valve can look at us and see how we've grown to start supporting TF2 more than just the "news" section.
TBH, they really should at least post it on the TF2 Facebook page, many people use that nowadays...
EDIT: Divided post for better reading instead of textwall.