Thanks for the answer but that wasn't what I was asking. If I'm going to monetarily support something then I'd like to know if a large portion of dev hours are being spent on stuff I'll never engage with. It being avoidable doesn't matter if it's 70% of the content for example.
Oh yes, in that case, no. These missions are optional and usually have just one scene among many in the update. And of course, you can vote on which fetish will be in the next patch. It doesn’t affect the main story or the side quests (except for characters with specific themes, like Alex and the femboy theme).
Also, I recommend going to the game’s updated page:
https://starchest.itch.io/take-a-break-051