He didn't understand very well, or didn't explain it very well.
Maybe he meant not to update HBC on Wii (not the Wii console itself), but it's up to the users to decide what to do depending on their use of the console/homebrew.
version 1.1.2 is fixing a bug present in 1.1.0, but some homebrew dependent to the old HBC TitleID will not work fine anymore. But there are always alternatives to old homebrew not updated anymore, like installing hidden channel forwarder.
the caused problem will not be very severe:
unable to load HBC from another homebrew, meaning Priiloader can't auto-load HBC or homebrew can't exit to HBC.
once you are on system menu, just launch HBC again from the HBC channel.