It's not about the ISA (I assume). The point is that these systems have essentially all free software firmware, as I understand it. You have remote management

It's not about the ISA (I assume). The point is that these systems have essentially all free software firmware, as I understand it. You have remote management, but it's something you can presumably fix if you need to. Apart from trust issues, you know how valuable that is if, for instance, you've had to deal with BMCs' brokenness continually over the years.