But what do you gain from that? Yes you could run wacky set ups, but what benefit does it really give except the "lol look at what random runes im running" Stats are too one dimensional and most champions only have one playstyle, so you can not really Innovate in that regard.
95% of people will run the optimal runes for a champ, which will be found out day 1 if theyre simple stat increases like the old rune system.
Also, for example, do you balance the ranged bullies around the enemy bringing 30 armor level 1? In the old system maybe 1 out of a hundred people had such specialized pages, you had to spent alot and set it up before you even queued up.
Imagine you can specialize your rune page in the game lobby to this degree, it would completely throw balance out of the window. And it doesnt take any skill to observe "Oh the enemy is AD, so im taking 30 armor this game".
The choice with the Old rune system was and will be an illusion and should not be repeated