> Should we be happy this grueling work is going to be phased out?

Yes. Absolutely. It will increase the production values, make the barrier to produce animation much lower, and it will remove a sweat shop class of laborers that is sweat shop-styled because it's prohibitively expensive to do it in any other way.

Removing a class of zero-social mobility poverty level work is never wrong even if someone gets squeezed by it when it happens.