In a change to its longstanding support policy, Microsoft says PCs based on new CPU architectures, including Intel's Skylake chips, will require Windows 10. A list of preferred systems will support older Windows versions on new hardware, but only for 18 months.
"For the listed systems, along with our OEM partners, we will perform special testing to help future proof customers' investments, ensure regular validation of Windows Updates with the intent of reducing potential regressions including security concerns, and ensure all drivers will be on Windows Update with published BIOS/UEFI upgrading tools, which will help unlock the security and power management benefits of Windows 10 once the systems are upgraded."
I think that putting BIOS/UEFI updates in to the windows 10 auto / forced update system is a real bad idea and may even open MS to having to pay the cost to replace an $600-$1000+ laptop and or $100-$300+ MB. If it's update system try to flash at the wrong time or at a very risky time say right when the is a big storm or at a time where the power is not very stable. Even more so with a install updates on shutdown.
And it can lead to an update loop on a laptop with you must be on AC power to install the bios update and then the system reboots and then windows retry's the update again.