The good thing about points is that you get a sheet of paper, it is objective, it lists the points and that. It is not perfect; there will be variances from comp to comp, in that you can see different opinions on the same element, skating skills, etc. It's not a science ... but it does disclose patterns. Which is why you can't really compare one comp to another.
Why do I think it is unlikely that they would host immediate feedback sessions at low level comps? There is a reason why judges have those enclosed areas to retire to. Judges are volunteers and it is not an easy job. It is stressful and hectic; they are sitting in the cold, often for hours, watching flight after flight of little girls (and boys) and scoring them in a not as easy as it sounds method, particularly in comps with large flights. They may have seen 10 or 12 flights in the day ... they are often flying from one flight to another.
Upset parents, skaters, etc, or ones who are inexperienced at comps (I was there too, I was one of those parents), make for volatile situations. To have to try to recall why one little girl in a pink dress out of dozens you saw during the day was placed ahead/behind other kids, or being asked for feedback on a flip or skills ... in that situation could make for difficult interactions. As an example, back when my kid was skating Introductory (that's end of LTS in Canada) he was placed 1st in a flight vs. boys who were landing far more difficult jumps. However, as the category was restricted to jumps of less than one-rev, his routine was by the rules, and they received deductions for illegal elements. The spectators were baffled, the parents, coaches and skaters were furious; we booked it out of the arena as fast as we could and actually formed a "shield wall" around him to protect him from the angry parents and the tense situation ... he was 8. Granted, that was extreme ... but I've seen worse happen over the years. My daughter is a judge, and she has had hostile parents accost her, teary skaters burst into tears on her, and you can understand why she would be leery of having to do this type of feedback process.