The new reward system pushes you to rent or buy cards to enter a higher league.
I rented/bought and stayed in Silver I and get more chests compared to the old system.

For me, when I have a daily focus with Fire, I rented strong Fire cards to play, I got more FP and more SP.
I got 5 chests on day 1, 7 chests on day 2 and 11 chests on day 3
Right now, I got 43 chests of season rewards after 4 days of playing, 113 battles, and won 81, an average of 5900 points/match.

You can check out some information in my post here
@sodom-lv/splinterlands-my-thought-about-new-8b7ce3e66ed49