I agree, I think the original post is harmful because the author suggests an activity that will strengthen identification & thereby increase suffering. Meditation does the opposite, in my experience, anyhow.
Commenter on the blog nailed it (“noise is a substitute for quiet”), or: activity as a substitute for inactivity, work as a substitute for rest.
In the Buddhist traditions meditation is used as a tool to examine the subtle nature of the mind's processes, how they may create suffering through craving, aversion & identification (dependant origination) which initially at least requires some down-time to bring the mind to a relatively quiet state. You really learn a lot about craving when all the goodies are taken away, similarly you learn about aversion from the small discomfort from sitting.
I love coding, it's my main intellectual outlet, but I never want to be someone who has to lug along a laptop on holiday because the pain of being away from code is too great, I take any such pain as indication that I'm broken in some way (addicted). If I simply coded every time I feel that addiction I'd never truly discover how dependant my happiness is on coding & I'd never discover that I can be happy without coding. I think coding is nicer when I'm not addicted to it.