nah, I'd totally disagree with that. There's a different approach to the science based around breeding and drugs to replace computation. The training systems alluded to are martial and rigorous rather than mystical and ephemeral. There's the whole thread running through where the spice combined with the mentat ability allows access to future branches of a causal decision tree, but when you look at that in terms of recent publications around psi and the potential arbitrary direction of the time vector, and everyone kinda holding their breath 'till we know more... it starts to look prescient.
The 'jihad' back in ancient earth time diaspora history against technology over a certain level is a hell of a move in terms of making the book as timeless as it became.