Many of the comments seem to assume that it was written by his colleagues and that the description of his career is condescending or snarky.
Personally, I find it really funny, and that it probably describes many of us, despite the fact that we think we are way too cool to ever be like the character described in the piece.
Most of today's new tech will become tomorrow's 'legacy'. Imagine how your awsum multi lambda hairball deployment will look in 30 years. (If it's even around in three decades.)
In the meantime this one site I worked on, which used Java for server side rendering¹ with a bit of JQuery and custom scripts is still going strong.
1: It's ridiculous to hear JS people say how awesome server side rending is when basically every other language used for the web was server side, sometimes decades before it.