As long as those steps Y & Z are actually adding redundancy/antifragility, then yes. If the purpose is some deprecated feature or dependency that simply serves

As long as those steps Y & Z are actually adding redundancy/antifragility, then yes. If the purpose is some deprecated feature or dependency that simply serves no purpose or is now an anti-feature, it would be more efficient to remove. It would be good to have proof of a Chesteron's Fence analysis to say "yes, we know that Y & Z purposes and have analized the cost/benefit to removing them and the populations/systems impacted" - would this be an impact analysis?