Just feels like a weird hybrid of both a closed and open league. 40 teams have guaranteed slots for seemingly the rest of the duration of the league so there's only 8 teams that will have the pressure to perform. Riot should either implement a closed league (not my personal favorite) meaning all 30-36 teams are guaranteed forever and restructure T2 to include academies as well as run T2 through the T1 off season OR have an open league (my favorite) where 1 team from each region gets relegated each season whilst the 2nd worst team of their region plays in a promotion/relegation playoff of the ascension runner up.
Also in either an open, closed, or mixed league academies should be focused. Whether its like how EG did their 10 man roster or how VCJ teams have like 5-10 players at least in their academy that are super young these should be prioritized.