And I'm certain both companies called out here have those samples and have been testing with them. There is a reason they didn't ship with them yet.

Samples don't do anything for high volume manufacturing, and a couple of months simply isn't enough time. You have to remember that the release date for MS and Apple products means those laptops are on the shelf. To get to the shelf, they shipped from Asia, which alone takes weeks. Before that they were manufacturing and stocking, before that they were testing like crazy and hotfixing everything they found for a couple of months, and simultaneously purchasing and shipping the components to the manufacturer. It's easy to see that component lockdown has to happen several months before the product is on the shelves, which means there is literally zero chance Kaby Lake was even a choice.

How does that help Apple or Microsoft to ship a product when the samples aren't available in quantity yet? Should they have waited for the new chips sometime next year. Surely no one would have complained about that delay.