Are they always worth fixing, regardless how many there are?

Also, you had plenty of time to prepare these and think this through. Someone seeing this for the first time may assume Chesterton's Fence and not change anything despite noticing - assuming it's less important than breaking whatever reason there might have been for doing things this way.

What I'm getting at is that you're not necessarily getting the best engineers, just ones who think like the current you.

It's a mistake and it's likely already costing you.