A codebase with consistent styles and patterns is easier to work on than a chaotic codebase, it would definitely make you better at shipping
And so on
It's the constant churn of dropping the current thing for the new cargo cult whenever it comes along. Cargo culting destroys consistency by constantly seeking the next new hotness
We'd have massive consistency across the software industry and yet that would be an absolutely terrible idea.
This did not make the team better at shipping something useful.
Consistency is bullshit if it doesn't help you ship something that people care about.
Consistency helps keep things more predictable and simpler to interpret and change.
It probably works for someone who came up with a practice that they don't want questioned or being held up to reason. Other than that, it's always bad.