You're thinking in the old way. DTC is built for interaction and has endless opportunities for monetization.
Disney is trying to sort out the future of the business. Disney doesn't just make content, they foster the biggest fan communities in the world, who also make content (YouTube, TikTok) and generate revenue (like this site, Etsy, etc.). Moving into the new era, Disney's films and parks are primarily going to be treated as ways to find/build fan communities.
They've been fostering these niche audiences for years (vloggers, influencers, creators). They really haven't even begun to sell to them yet, but they are much more loyal and lucrative customers than any general audiences ever were. None of this was possible in linear, all of is it possible through DTC.