"We don’t know how many people would choose to pay to see a film in theaters when they could legally download it at home for free.”
How will you download it if you don't have the file? I'd be surprised if any movie theater would choose to share it, especially because they will surely have further agreements that prohibits them from doing so. Basically "I will not share this file or pay a huge contract violation fine".
So the only way to watch it would be through cam recordings that suck. And I believe YouTube and other video platforms could make agreements with A24 to take them down for a while.