Yep, Einstein was an expert in his field who wrote a couple of ground-breaking papers in his field. As far as I can tell no-one who is an expert in AI (or even similar fields) is worried at all about super-intelligence.
I would go as far as to say, "humanity" as it is defined today, is doomed, it is just a matter of time.
The only question is: Will doom play out with a dramatic disaster or as a peaceful handoff/conversion from biologically natural humans to self-designed intelligence.
Either way, natural human beings will not remain dominant in a world where self-interested agents grow smarter in technologic instead of geologic timescales.