Why is that AI was supposed to help juniors shine, because plenty of so called "senior devs" have never really learned properly, bad habits, or lack technical breadth to be called that. This article is nothing more than what everyone else has been saying for two years, poorly at best. AI + coding has yet to hit it's stride and at some point highly specific LLM's will take into account of architecture, patterns, use-cases, compute environments, network, dev ops, testing, and coding to further equalize and close the gaps between the two roles. I've talked to seniors devs many are not interested in AI coding, just not the way they do things.

The only real advantage a senior dev has today is domain knowledge specific to a business in many cases. Even that is not much to hold on to because when layoffs come if nobody is hiring jr's then the seniors are getting axed.