@Zed, I would say getting stuck is way safer than flying.
I/We want you to get that fine balance by repeated practice crossing a dune straight up/down and while criss crossing as you progress- first on a small dune, then a medium, then a bigger and a sharp crest.
By flying you risk breaking something ( a bumper/fog lamps) to be the least, or a flip if it was worse - both of which is totally avoidable. If you fly while criss crossing you risk a roll over as most of the times you are entering the slip side of a dune.
While you practice to get that balance, you can get stuck 100 times and I/we will recover you 100 times (Here comes the importance of having strong rated recovery points at front and back.), but all do it fairly quickly. None other than @Karthikeyan Govindarajan would agree. Good to see how he is finding that balance in quick time