Typical hn comment where major feature of a software is broken because of “reasons”. But it is fine because “I and most people don't use it”.

Hey if you are not using casks you are missing out. It's by far best way to install gui apps on a mac.

Once this doesn't work its serious problem for brew because there are package managers like nix that are arguably better for developers. Something like this could start slow death of brew just like macports did before.