It's very promising, but it's far from "devastating". At least, I hope so.
In theory, the Sixers lineup for a decade would have been devastating (as people here said months ago): Simmons, Covington, Saric, Noel/Okafor, Embiid. Well, Simmons has yet to play a professional game, Noel is gone for peanuts, Okafor seems a bust and Embiid may have his career threatened. Things not always develop as expected.