That's definitely a big part, but especially recently VFX teams really don't have the option to bring in real intent and passion. Scenes are often changing unti

That's definitely a big part, but especially recently VFX teams really don't have the option to bring in real intent and passion. Scenes are often changing until a few months or even weeks before release, frequently with very tight deadlines, and after months of crunch. There's no way to deliver a good product under these conditions, just look at many of the recent Marvel movies. Practical effects are much harder to change later on, so VFX built on top is also more likely to avoid this ever-changing crunch. But that's also why they are being avoided more and more - it increases cost of changes, and studios won't give up late-stage changes.