That's what's wrong with indie cinema, documentaries and small movie projects. Another film I'm interested in, I'm ready to purchase and watch, yet I can't since it's not available anywhere, except for some screenings in a handful of places worldwide. So it ends up as an easy to miss entry on my ever growing to do list hoping to be re-discovered and some day.
I understand (though not agree with) the argument for theatrical windows for big, mainstream blockbuster movies. However what is the point of artificially and severly limiting the availability of niche releases like these? Your target audience is already tiny - unnecessary barriers certainly don't help.
In contrast theaters literally beg studios that make blockbusters to let them project the film on as many screens as possible since these movies are expected to draw large crowds and popcorn and drink purchases.
And needless to say that it doesn't require a fancy projector to have a fine movie experience - most households have a big TV that comes close enough. For this kind of movie, however, audio/video equipment shouldn't be a concern at all.
What I'm trying to say is: Why screen the film at a very limited number of cinemas, which you might even have to pay when you could get paid by viewers directly?
Personally I don't really disagree with you; it would be great if good films were available on Amazon, Netflix, etc sooner.
https://www.rottentomatoes.com/m/the_world_before_your_feet