The #4 and #5 classes last year had two and one 5 star recruits. Also, Bowen is #34 which could be a 5 star (typically there are 31 - 35 five stars).
Furthermore, do you think that if ND has five or six 5 star recruits, that there will be three other teams that land five? I doubt there has ever been a year where 4 teams each landed five 5 star recruits.
You must also believe that once ND has 17 recruits all ranked as 4 or 5 stars, they are all of the sudden going to start loading up on 3 stars. Hell, you only listed one OL. We'll get another three four stars based on OL alone.