Wake up to yourself.. I was being cheeky - & intentionally short, because of your naively blanket comment.
In context, an old school production team - likely consisting of multiple units at least, working with various mediums & techniques, is a long drawn out, time consuming, labour intensive process. That equates to a lot of man hours, & potentially - money, comparatively speaking.
Compare that set of circumstances, to nowadays what typically what consists of a generally modest team of highly skilled animators & associated crew, those that do render work etc, & the folks that oversee those relatively small units - COUPLED with industry standard tools / software etc (that many independent projects have the opportunity to use now as tech gets more compact & cheaper), that have made the whole nature of the business FAR more accessible, practical, & COST EFFECTIVE.
If you don't understand that.. then enjoy having you head up your clacker.
yeah, bla bla bla.
Watch this if you want to learn something (they specifically talk about how practical is cheaper)