I'm not sure if the screen shown in the video is representative of the typical selection, but it shows 6 options, only one of which gives cash.
This game has been out since 2017. My guess is that most players have been maxed out on XP for years at this point. I know I am, so what I need is cash for structures and taxidermy.
I know the video mentioned other types of rewards coming next year, but in the meantime please lean on cash rather than XP. Or, even better, let us choose which reward we want when we complete a challenge, and then you wouldn't have to worry about the ratio at all.