What really grinds my gears is the amount of systems with TPM 2.0 that they won't support, such as many Skylake and Kaby Lake (Dell and HP Core Ix-6xxx and Core Ix-7xxx systems, as well as Broadwell Xeon E5 v4 systems) even if TPM 2.0 is present. Pinning requirements to specific features is fine, but this arbitrary cutoff of CPUs without feature differences is just so infuriating.