Yes, I have had this experience at both of my kids schools.
Plus I know several kids with those “perfect” scores who got rejected. In the case of the kids I know personally they all had the high scores but average grades. I have heard from AOs that this is a combo they don’t like as it indicates either a lack of intellectual curiosity or pure laziness. They want kids who do well and care about learning even when they don’t HAVE to.
I actually had a mom irate that her son was not admitted when mine was. She angrily told me that she had explained to the school that she didn’t care about middle school grades. I tried to gently explain that I had never “cared” about middle school grades either but my son is internally driven to LEARN and that translates into good grades under a good teacher. I had seen her son use his phone app to do math homework many many times so I kind of got where the AOs were coming from. Mine would have fallen on his sword before, gasp, cheating at homework!