What's the difference between Ship Engineering 4 and Taskmaster?

I mean, a skill you have to level up and invest multiple points into should be stronger than a bonus trait you can choose at the start of the game. They have similar effects that you can either stack or take one instead of the other to free up another trait/perk in your build.

I don't think they're mutually exclusive; they should stack, so having both means you're more likely to repair the systems.

That said, I'm not personally a fan of relying on something random.