You don't get it, don't you...
Here is a hint: It's not about just a button, it's about the way Riot is presenting the crappy reward system to us and shoved into our faces. It's about the psychology behind it! It's about reading between the lines. It's about mind games and mind sets.
You think it's just a button that reads " awesome ", we read " F-ck the community and what they want. We're gonna give them some crappy emotes and icons, that barely take any effort and resources to create and have no value whatsoever, and they WILL be happy about it, because that's what they deserve and because we said so! If we say it's awesome, then IT IS AWESOME. End of discussion! ".
We play video games to have fun, sure. But, also, getting meaningful rewards, inside the game, is one of the most effective ways to push the players to play even more and to grind that ranked ladder. That gives us a purpose and a goal to reach inside the game.
What Riot is doing is like having a job, IRL, and after working hard and doing overtime, the boss comes and says " here is a tap on the shoulder. Isn't that awesome?! Enjoy it! That's your reward for working hard ", no meaningful compensations like extra overtime money or a raise or something...
When you put in the effort into doing something, you should be rewarded for it in a meaningful and significant way. League is, at its core, free. But it's not like me and a lot of other people aren't paying them money for skins and whatnot. So, technically it's not free as long as I'm paying money to them, regardless of where that money is spent. Afterall, the money is going to Riot directly, so...
Considering this, when I play regular ranked league or ranked TFT, I expect there to be good really awesome rewards, not this cringy reward system. We want something that will push us to tell our friends who don't play league or TFT: " Hey! I play this awesome game called LoL (or TFT) that has some awesome gameplay and is fairly balanced and cool. Also, you get awesome rewards for it if you grind that ranked ladder. You should come check it out! ".
Right now, when my friends ask me about league or TFT, all I can honestly say is " Well, it has potential but right now it's a clusterfuck of bugs and unbalanced gameplay. It's not as fun as it used to be and the rewards you get for playing it are abysmal. It's not worth wasting your time trying to learn it from the ground up, atm. As for me, well, I've been already invested for years, so I managed to adapt and find some ways to have fun in it, but I'm starting to think seriously about quitting for something else!".