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.
It's not quite that bad, the vast majority of people who work on a Marvel project at a vfx vendor will get a credit, though often in a huge bank of names. It's true that the ordering is driven by historical considerations which is why vfx credits typically aren't that high.
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.
Marvel made their fans watching all credits because of a teaser of a next movie at the very end, so I did it a few times: it actually feels like VFX is consuming now the biggest part of the credits with several production units and at least a few hundred people.
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.