All of this can be simply changed by fixing the level up system. Give BE after each game, and give a lot more BE each level. This is the most simplest fix anyone could have thought of without complete chaning the rune page bollocks.
Runepage purchases are still a pay-to-win mechanic in this current state, and it needs to stop. If I have to grind my ass to get a runepage in order to make the game less stressful, then the game not enjoyable at all. At least, a t the very freaking least make it less grindy so as to be easier to get champions, get runepages for each of them and god forsake play this game as it was intended.