I do not recall at any point in Beating the Averages [1] in which pg used "ease of installation" as part of the definition of a blub language.
Blub has a specific meaning. It's not a synonym for "bad".
There are plenty of other technologies that are as reliable as PHP. Ruby was not really one of them. Ruby went through a bad hype cycle a couple of years ago and was never quite as good as it was sold to be, especially on the reliability front. It's a great anecdote but a bad argument.