as I mentioned, those 'features' are all attacks against the users. The only thing that's been 'secured' is the control that govcorp has over the hardware.
Just because today's HW is fundamentally unworthy of any philosophical objective trust and should be scrapped for #Open* HW that is, does not mean that some n% of today's use cases up against certain threats are not valid. About the only case that holds worthy is keeping the system airgapped and off the net while using it as a word processor for kids to print cute "hello worlds" to the screen in a museum. Can't use it as a secure crypto keygen or signing enclave, because HW RNG/KEY is not trusted, or CPU is snooping and modding SW RNG/KEY output, or being exploited by USB transfer, or modding base64 printer output for OCR, etc. Somehow people don't think n-Billion non #Open* gates and firmware loads on a closed source CPU die could do that, those people are pretty stpuid. Yet, steering funds away from Intel that does not offer SME, permanently steering part of market funds away from monopolie$ like Intel, educating people that some security ideas for HW exist that the market is clearly choosing to buy... does have at least some impact and energy that can then be co-opted and expanded on by an #Open* movement.