I feel it would be folly to dictate someone else's goals.
To clarify a few terms, I feel that tops of thighs parallel to floor is not a full depth squat, but is actually what many would still consider a partial. In powerlifting, depth in many federations is hip crease below top of knee joint, which is going to be lower than tops of thighs parallel to floor, and a FULL depth squat would actually descend even lower than that ("ATG" as the internet loves to say, but essentially the bottom of an Olympic squat).
Having established that, the majority of my heavy squats in training are above powerlifting legal depth. This is mainly because, when I squat like this, I reach my goals (better performance in strongman). When I squat lower than this, I do not get better at my goals than when I squat higher than this.
Now, if you have to squat below a certain depth to reach your goals, you absolutely SHOULD do that. It's just, many people approach training backwards. They try to create a certain form/technique and then assume that this technique will reach a certain outcome, rather than instead analyzing their outcomes and noted which techniques allowed them to reach them. Folks will be adding muscle and getting stronger, but when they see a video of their squats and note that they aren't "hitting depth", they decide that this MUST change.