Agree here and that safety valve is the only thing that doesn't cause the entire CSL thing to come crashing down.
If you really wanted an honest assessment, you'd put evaluators in charge to assign flights based on points earned, tournaments, placement in cups and placement in prior league (plus the rankings of individual players coming and going from the team). But the question remains then who is better at making that assessment (considering bad results can take place in either league): the DOC and coaches, or an arbitrary rule system that has quotas, is mathematically irregular, and only takes a look at narrow criteria.
Not cost effective either. Everything is subjective except winning and losing. Then a petition process for times when it's needed due to losing a lot of players, gaining great players, or if team just made great advancement towards end of season or off season.
Oh wait - we had/have that in CSL.