[seoaeu]

I'm sorry, but this (and a bunch of other similar blocks) seem pretty intentional...

    # Do no recommend non-Free microcode update.
    announce X86_LOCAL_APIC - Undocumented
    clean_blob arch/x86/kernel/apic/apic.c
    clean_kconfig arch/x86/Kconfig X86_LOCAL_APIC
    clean_mk CONFIG_X86_LOCAL_APIC arch/x86/kernel/apic/Makefile

[pxc]

If the kernel can't load it without code changes and recompilation, due to the de-blobbing process, it doesn't make much sense to recommend to users that they load it.

[marcan_42]

You can often also update your microcode by updating your BIOS/firmware.

[pxc]

That's a good point! Adjusting the message to direct people down that route rather than simply removing it seems like a good idea.