Funny. Some folks seem to think either:
a) they all have an Intel chip in them,
or b) companies like ARM, Dell, Samsung and Seagate plan to have their hardware equipment centrally managed by Intel.
or c) companies would prefer to have multiple remote management services (eg one for their PC CPU, another for their phones, another for their SEDs) rather than a single one for all of their equipment and the components in their enterprise's devices.
Subsumption. Yes. TCG subsumes. Intel is a subset.