Wow! That I did not know.

Terry Davies left it out intentionally, AFAICR, due to the complete lack of any security in TempleOS. Putting it back in seems a bit irresponsible, but nonetheless, it's impressive.

Yes, true. But if you are only running TempleOS on a VM, or an old computer, or a Raspberry Pi or something (not sure if it's supported), it should be fine.