No he's saying the definition of "being good" is not obsessively adopting "new technology" but realizing that the core foundations of CS are the core foundations of CS, and doing your job 8 hours a day and learning your core skill set and iterating and practicing on it is in fact all that is needed to produce a good programmer.

Frankly I think those of us who have been in the industry over 15 or 20 years know that adopting new technologies is not the hard or important part. Having the wisdom about how, when, and what to apply things, recognizing good engineering, and learning to work well in a team -- that's what's important.

Having kids might mean you can't stay up at night learning the latest JS framework -- but that very likely might be a good thing.