I think the issue is that many CTO's don't take all of these factors into account when they do decide to switch to or add a new language to the companies codeba

I think the issue is that many CTO's don't take all of these factors into account when they do decide to switch to or add a new language to the companies codebase. It seems many are shortsighted and simply see A > B without evaluating all of the costs of switching from B to A.