I remain on the fence myself, but that article mostly argues that it is useable and used in the enterprise, not that it's worthy of use at that project size and scale. I think that article, rather than being a strong technical piece, is a pretty good example of:
http://en.wikipedia.org/wiki/Argumentum_ad_populum
Also, it doesn't take much google-fu to find a counterargument from someone apparently reputable:
http://www.quora.com/Why-does-Google-prefer-the-Java-stack-f...