Those videos look more like "I wanted to be an animator along with way too many other people, the best gig I could get is animating blog spam, at least I can have some fun with it" to me.
Well, it's possible they were entirely automated, I've seen some papers taking a script and generating an animation from it. I don't think anything like that is available off the shelf though and it would be way more trouble/money to write a program to do it than to hire a few Full Sail animation graduates to make half-hour animations that fit some word salad as fast as they can.
Xtranormal basically animated scripts algorithmically. I'll bet you could write an algorithm that would take certain inputs and create certain animations. I'll bet it would be a lot easier to staff a sweatshop full of entry-level computer operators who don't speak a word of english.