Very cool.

For what it's worth most med-high profile games are built on similar techniques albeit at a larger scale. You're largely building tools and reusable components that let designers, artists and animators define behavior, look & feel.

It goes by a couple different names but the most common one I see is "Content Driven Development". As you've noticed it has all sorts of benefits like fast iteration time, updates on the fly and ability to allow non-coders to bring in their perspectives to build experiences.

Don't let the ivory tower haters get you down, it's a very powerful and valid approach in the appropriate domains.