I agree that they continue to make it harder to get “free” Exp, that’s exactly why I’m thinking about min-maxing the challenges.
My point is that we get 6 challenges each week and we only need 3 to complete the bonus. That’s an extra 3 challenges to spare.
If of those 3 challenges 1 is easier and 2 are harder to complete. That would mean that when I keep on playing, the easier challenges don’t count towards the bonus. In that case I would need 1 of the harder challenges to complete all bonus rewards at the end of the season.