aslYes, definitely, I agree with everything you said. Rereading my comment I was too vague with that statement. They're support has definitely picked up, which is cool to see. When I said lack of support I guess I meant in the past. Like 2-3 years ago, when they were going full ham on the cosmetic updates and such, as Nope eluded to. There was a massive shift in the way the majority of gamers view TF2 and what valve are doing now to try help could unfortunately be too late to rectify the games' image.
It's Valve's MO that they wait for organic growth, it's actually unusual for them to make this kind of push and it's probably to do with the threat of Overwatch. They have addressed a short term goal in providing a ladder grind that Overwatch does so players don't have to jump ship to get that experience. It's worth keeping in mind that even if it doesn't go any further what they've done will have worked for them in that sense.
In terms of the game's image Reddit's attitude has totally changed in the last 2 years, /r/tf2 now gets plastered with competitive clips every time there is a decent tournament. They're not entirely representative of the whole of the TF2 player base, but it's an example of progress being made and it's in no small part due to Valve giving competitive tacit backing by making the MM system.
Leveraging that Reddit growth to move to the next level is a potential step, can we get the resources to hold more Lan tournaments regularly that capture people's attention? The problem is it all relies on volunteers who are burned out, and Valve could make a very cheap difference by quietly supporting that kind of grass roots activity.