I see your point here - and I do agree, from experience, people sometimes express a desire for a bit of reality distortion in dating (we often heard that they want the experience to feel more like 'fate' or 'chance' than overly engineered).
That said, I don't fully agree with the idea that there's a uniform concept of x/10 scale for daters and that they uniformly will balk at those below that uniform rating and therefore the only way forward is boosting those based on their global like %. And some data backs this up.
The oft-cited OkCupid Dataclysm book talks about variance (e.g. lots of people like / lots of people dislike), explaining variance is meaningfully more important to messaging and engagement than raw like %.
Additionally, on the point of weight / body type, we found that a little under half of daters (and > 50% of women interested in men) do not report body type to be a significant factor in their decision making. So it is a meaningful factor, but for about 1/2 of daters it isn't.
The point I'm trying to drive here is, while there is for sure data and intuition that points to what you're describing, there are others that point to other ways that people perceive the quality and likelihood of finding a partner on an app that may work as well, if not better, while not relying on a need to as heavily hack perception.