I mean, compare Aurelion Sol's reveal page, released in 2016:
To Qiyana's "reveal page", released in 2019:
This also applies to Yuumi's reveal.
Aurelion's looks magical, majestic, well layed out, well coded, and it just excites you for the champion. Which is a key factor when it comes to new champions.
Qiyana's reveal is just plonked there. No presence. No excitement. Just a "Here, abilities." news article. Riot, you're announcing a new Champion, not a new Summoner icon or emote. Make it grand.
But the quality drop does not stop there.
Compare Super Galaxy Rumble's log-in screen, released in 2014:
To Dark Star Jhin's log-in screen, released in 2019:
The downgrade and difference in quality is so obvious. And these are both LEGENDARY skins.
Rumble's log-in feels alive, well executed and fully polished. It sells the skin as Legendary.
Jhin's log-in looks barely alive, half baked, and it does not have the captivating feeling that Jhin usually does. From the log-in, the skin does not read as Legendary, and the music, while still good, lacks the presence, the right amount of epicness that Riot's music theme is known for.
Riot, you were always captivating audience with epic music, trailers, teasers, reveals and log-in screens, and that is what seperates you from the competition.
League's art and skins are one of the only few things that have advantage over Overwatch, HOTS and DOTA, where heroes rarely have their own theme music, animated splash arts, and most of the skins in those games are recolors.
Stay true to what made your game popular and seperated you from the competition! Amazing epic captivating high quality artis what made your game different! Do NOT sacrifice that!
NEVER half-bake anything!