Eh. This argument seems pretty off.
For years every champion was all just “street superhero” because they were all supposed to be fighting each other.
But now the lore has taken a decidedly overpowered step. Since Kindred and Sol some street levels have been completely rewritten to become demigods. Volibear and Pantheon being the most obvious examples.
But even all the Ascended, they were originally just strong aliens. Now read the completely ridiculous shit Xerath pulls in his fight and some of the insane damage Nasus shrugs off. That’s not street level heroics anymore. And Sion is said to be able to knock over 300 tons when all he was written as was just a tough zombie that couldn’t die. Then all the yordles became immortal fey. And the actual demons who (if Kench is to be believed) have some time control powers and are practically immortal. That’s damn strong.
Oh forgot Malphite. Whos now mountain sized or something.
Then there are the other “ancient magic evils” Xerath being already mentioned, but Liss is one as well, and so are the darkin supposedly.
And this has all happened in just the last two years, where almost (but not quite every) lore update involves these demigods.
I, in general, don’t like demigods (Ornn being the only exception thus far, mostly because of his personality more than that he’s a demigod). I’d rather have more soldiers and commanders, politicians and scientists.