i feel like the na system of open qualifiers for every event is better for the tier1 coz if a team struggles in 1st opens they have time to get experience and rectify mistakes and put up a fight in the next event while in emea if arent in good form during opens, u will mostly not qualify for vrls and that pretty much ends ur chances to reach next masters before even the start of groupstage of qualification to masters 1 which literally makes close to 6 months of nothingness and no tier2 tournaments to take part in either
only thing i would change in NA is have a big tier 2 tourney series during the groupstages for qualification to masters which would give you some vct points for top2 or give the top 2 a faceoff against the bottom 8 from groups in a knockout playoffs to give the finalists of the playoffs spots in the groupstage while other 6 spots are up for grabs in an open qualifiers similar to the present system