We should've gotten more free rune pages with the update
New runes aren't boring stat sticks like old ones, so you really can't build a, say, "Generic AP" page and expect to use it on most of your AP champions. They are basically masteries, a system for which Riot deemed customization was important enough to give us 20 pages for it. I'm not asking for 20 free pages now - IMO 5 should've been bare minimum to cover most of the archetypes with one page; utility, burst AD, sustained AD, AP, tank/fighter. And no, I don't count horrible preset runes as those are useless to anyone except new players. When was the last time you followed a champion's recommended build to a T? Same shit here.
"But Weiss" I hear you say "Giving those away would screw over people who bought pages with RP". That didn't prevent them from screwing over people who bought tons of runes now, did it? Similiar to pages, you could grind up IP or spew out some cash to get them faster - directly for pages, and buying IP boost for runes.
"But you can change them in champion select". Yes we can. And it's a bloody big inconvenience since you can only build pages for 2 roles. You aren't playing one of those two roles this game? Too bad, you'll have to rebuild one of your pages from zero, and the clock before the game starts is ticking. With 20 mastery pages this wasn't an issue, since with that many options you'd have to do minor changes at worst.