Well, yeah the post kind of tries to argue that but it is also talking about how we don't have an Einstein or Newton like AI. Those two are outliers thought of as some of the smartest scientists ever to have lived and so are a bit of an unrealistic target just now.

As to whether AI can go beyond doing what it's told and make new discoveries, we've sort of seen that a bit with for example the AlphaGo type programs coming up with modes of play humans hadn't thought of. I guess I don't buy the hypothesis that if you had an AI smarter than Einstein it wouldn't be able to make Einstein like discoveries due to not being a rebel.