I never said deployments were trivial. I said they were trivial compared to programming skills. And I also said they are both industry and company specific.

Expecting a random hire to already be familiar with your deployment process and tools seems very strange. I've done deployments in many situations and, well, I wish there was an industry standard. But as you point out there are many conflicting tools and using them is never turnkey.

They are industry and company specific, but so is any concrete problem you'd ask anyone to work on. They don't t need to be familiar your specific tools, but they need to be familiar with why they exist and be able to do something similar on their own if needed. Even at a place like Google, where deployment is extremely mature, it's still important to know what's needed to roll your own. As you say, these things are never turnkey.