Actually, the new system is not that bad at all
I just got up from 30 to 31, i counted it took me 15 games of ascension mode to get me to that lvl. I got a champion capsule, from which i got 950 BE draven. Counting it all, i got like 60 BE for 1 game on average, so pretty much the same as the previously with IP? Its still random because i could get 750 BE champion and that would have gave me 50 average, but also i could have get a over 1k be champion. So we basically traded a constant IP reward for a more RNG system in which we could get much more rewards as a final result. If you will drop a champion you wanted to buy, you additionally save a tons of BE. Not to mention, with the current system you are not forced to buy runes and that adds up a huge benefits for the newer players. Despite what people say, the new system is not maybe a change for a "much better" but a slightly better, with RNG that could reward you pretty nicely. We should appreciate that there is no more a wall between new and old player in the runes.