cbhc is not really mandatory, i've done many builds with no cbhc, i've done the quickboot + launch mocha from hbl directly (replace elf so no need to rerun haxchi)
this worked really well,
cbhc is great, it just posed an unnecessary risk, I know people would say, you'd be stupid to format without uninstalling first, but shit can happen. it's not like menuhax for the 3ds where you can remove the sdcard and you're back to safezone.
it's not even like the 3ds downgrade process from before where the whole 30 minutes of downgrading every title and hoping it won't fail is nervewracking, not even close to the ctrtransfer- with cbhc, the itch is always there, waiting for you to make a mistake.
sorry for quite the OP, cbhc is great tbh.
correct me if i'm wrong, there's a bootromhax for the wiiu, it's documented but not implemented, just not many devs out there doing wiiu stuff now since good things are on the switch.
kindla like how the dsi got left out after the 3ds got released.
anyway, sorry for the op, got carried away with the topic lol.