Why do these improvements come so quietly though? I have no idea when they added those!
FWIW I can see that being intentional: If you're on the League subreddit odds are you're a long-time player and this has no impact on you.
And even if you're a not-yet-player, I can't imagine the marketing tagline, "Now you get more champions quicker!" is going to push you over the edge.
I'd expect this is probably a "show, not tell" type of change.
Source: I don't work in marketing at all. Well, I guess Champion Spotlights count, but still.