some questions about the new runes

edit: why is it that every time i make a post asking a legitimate question i get downvoted?

sorry in advance if these have already been answered, i live under a rock

anyways so ill just get straight to the questions. is this going to make early game much more difficult because (correct me if im wrong) the raw stats from old runes are gone, or did they put something in place to compensate for the loss in raw stats? because otherwise last hitting at the start of the game is going to be a nightmare wont the increased complexity in runes be more confusing for new players and make the game that much harder to balance? similarly, since the new rune system is going to be much more complex and with restrictions on how you can organize your rune selections on each page, wont that decrease diversity?

im not trying to complain or anything im just trying to understand the rune system a little better