The Intel Management Engine always runs as long as the motherboard is
receiving power, even when the computer is turned off. This issue can be
mitigated with deployment of a hardware device, which is able to disconnect
mains power.
Intel's main competitor AMD has incorporated the equivalent AMD Secure
Technology (formally called Platform Security Processor) in virtually all of
its post-2013 CPUs.
I think Ylian Saint-Hilaire hasn’t been with Intel for about a year now, after some layoffs. As a result the software ecosystem around AMT/vPro is lagging these days.
Hardware wise nothing changed, it’s just even harder for the actual owner of the hardware to use the legitimate management features while presumably easier for whoever could illegitimately abuse them.
