Only 41 employees, though. Disney has another 18 in-house VFX employees, and their election is coming up. This doesn't cover subcontractors, who do most of the work. Those are all those companies, and thousands of people, you see in the end credits.
if you look closely, those usually on-set people, medics, drivers, catering services - those who have unions. VFX companies in most of the cases have a dozen of entries out of hundreds who actually worked on the title, or just a single line company mention. I could understand this practice in cellulose era, but saving a few megabytes at the cost of disrespect to your workers is simply despicable.
I think the issue with credits is nothing to do with the storage, it's to do with the impact of the run time of the film.
Even Oppenheimer had over hundred artists and it’s famous for not having any VFX. https://www.cartoonbrew.com/ideas-commentary/christopher-nol...