Experimenting on the kids by constantly changing the curriculum is a recipe for disaster.
And the jargon!
The term “sight reading” changed every few years to: look and see, look-say, look-and-guess, Dick-and-Jane, picture reading, picture reading, whole word, whole language, emergent literacy, functional systemic linguistic theory, psycholinguistics and oh, yes, invented spelling.
All of it was a pretense of professionalism. If they were real professionals they would have looked at their research once in a while and designed reading programs that work.