It increases the organizer expenses, because if we take this tournament, all the RMRs are LAN, so more production time, salaries, venue rent, etc.
On the other hand nobody watches this shitshow, so there is no profit in more production hours. I think this is one of the main reasons tbh.
And if you want the organizer to expand the quals, you have to provide viewership and support from the crowds, which is only possible to get with the quality of play, obviously, and media maybe. But none of it exists in asia and oceania regions
So the conclusion is that the scene is dead and nobody wants to invest into its development