Also, one of the single most important parts of security is human manageability. Having to go into a proprietary app for each manufacturer.

There's this level of management at the google/amazom/apple level, and in some cases google even lets me push firmware updates (sennheiser ambeo is an example), BUT there should be a requirement that security settings in firmware be exposed in a way that they can be manipulated in a rolled up dashboard. I shouldn't have to depend on a first party app to stay maintained to get to the settings for a device.