That's a good point. I'm talking specifically in the context of deploying code. The potential for senior devs to be totally overwhelmed with the work of reviewing junior devs' code is limited by the speed at which junior devs create PRs.

So today? With ML tools?

Could you explain what you mean, please?

Junior devs can currently create CLs/PRs faster than the senior can review them.

Indeed. In the language of the post I linked [0]: it's currently an occasional problem, and it risks becoming a widespread rot.

[0] https://news.ycombinator.com/item?id=44743651