Wasn't actually the overall difficulty of it per se, more of a type of difficulty of the one specific section of 4 back to back 1-2 frame low jumps in L3. I actually enjoyed level 4 a ton, and it was harder for sure.
Oops, yeah I know which section you're talking about. I believe the intended method for that section is to time all of your sand to one side before entering and just ride on through without jumping, but judging from this issue being brought up in multiple comments, we definitely should have communicated it better. Thank you so much for your feedback and thanks for playing our game!