Like the thing is a lot of people don't see this as an issue because their main job is either in vg industry to some extent or in games academia, so being included in an event is a cost they can absorb and/or be supported in doing by their workplace bc it's a cv-builder, but this just means those are the only types of people whose work you will get and those showcases are unrepresentative and boring! if your call is open to "everyone," make it something everyone can do by PAYING ARTISTS
if we wanna say games are art we gotta make it a thing where an artist can make an arts practice for themselves otherwise we have to admit we just want the pizzazz associated with the term!