I kept waiting for the author to say, "Surprise, it's a jar file. Jars are just zips, and lambda supports Java." Then I realized author really was reinventing wheels for the reader who probably doesn't know what Java is.
I am totally with you... I think we are going backwards in technical choices just because some people had pain-points learning pre-existing technology or did not know how to deal with infrastructure. But if people pays for it, it is a market I guess.
