Sure it may be a fractal of bad design, but it's unfair to say it has no productivity value. You can write plenty good PHP code that actually accomplishes things. (And this is coming from someone that hates PHP)
> but it's unfair to say it has no productivity value
Nobody is saying it has no productivity value. Even the "joke" isn't saying that - the Y axis isn't labelled - it's just suggesting a) productivity doesn't increase, and b) you feel much more productive than you really are.