NO
If I am right the three 6a schools from Overland Park last year were Blue Valley North, Blue Valley Northwest, and St Thomas Aquinas. The three had a lot of good seniors who placed.
They each had one underclassman place.
For Aquinas, Drew Ibarra a Jr took 2nd at 152. They also had a freshman Joey Ibarra at 103 and Chris Jagoda a Jr at 112. Neither won a match.
Blue V. North had Tyler McCormick a Jr place 3rd at 119. They also had Nick Martin a jr at 189. He won one match. Brian Hetrick a Fresh at 103 and Mike Landau a JR, I don't think won any matches
Blue Val NW had a Soph Garrett Jones take 6th at 275. Todd Williams a Jr won one match at 215 and Matt Crystal a Jr was at 140 but I believe lost both matches.
To my knowledge there were no other 6A schools from OP last year. Blue Valley West was 5A.