This has a very low n=16, and so presumably some strong selection biases. (Surely these are not the only people who have published thought-out opinions on the the likelihood of fooming.) Without an analysis of the reasons these people give for their views, I don't think this correlation is very interesting.
Thanks for the comment. There is some "multiple hypothesis testing" effect at play in the sense that I constructed the graph because of a hunch that I'd see a correlation of this type, based on a few salient examples that I knew about. I wouldn't have made a graph of some other comparison where I didn't expect much insight.
However, when it came to adding people, I did so purely based on whether I could clearly identify their views on the hard/soft question and years worked in industry. I'm happy to add anyone else to the graph if I can figure out...
http://reducing-suffering.org/predictions-agi-takeoff-speed-vs-years-worked-commercial-software/