I forgot to mention that the mini.iso image located here [1] does appear to work as expected FWIW. But the image found here [2] does not.
[1] https://debian.osuosl.org/debian/dists/bullseye/main/installer-arm64/20210731/images/netboot/ [2] https://debian.osuosl.org/debian-cdimage/11.0.0/arm64/iso-cd/ -- Lance Albertson Director Oregon State University | Open Source Lab