I discovered Teilhard de Chardin in the mid 70s. Enjoyed some of his ideas, but he didn’t really have a firm grasp on the mathematical or strategic contexts of evolution.
To me it is clear that evolution is not really directional. Consider exploring a territory – if you start from any point, and travel randomly, you will most often be exploring new territory, because there is a lot more of it than the stuff you have already explored, and sometimes you will go back into already explored territory. Looking at the evidence from molecular phylogenetics it is very clear that biological evolution does precisely that.
Looking at the history of cultures shows that mimetic evolution tends to do the same thing periodically.
We now have the possibility of transcending that paradigm entirely, and yes in the very broadest of sense, noosphere is a reasonable name for it. And it seems clear that it does not exist in the sense that Teilhard originally used it – close but not quite.