The minor was modified to be the 1st access to RMR points, for example Astralis has guaranteed to be in the major already with their existing points.
Literally everyone else is still contending for spots for the major, CS_summit will use invites and qualifiers to determine the contenders, expect a big percentage to be invited and a few teams to get in by qualifying.
The reasoning for this qualifier system (RMR) is that a major that happened a year ago and a Qualifier that happened half a year ago shouldn't determine the teams entitled to sticker money and major slots in the event they fall off.
If corona wasn't around, the Rio major would have been ongoing for a while already, and thus the teams who didn't qualify to the minor would also be waiting for this current timing of Rio major.
I hope I won't confuse you with the explanation.