> the only TLDs with two components are `"co.uk", "co.jp", "com.au", "co.nz", "com.br".
Is this sarcasm? The public suffix list will give some ideas for omissions: https://publicsuffix.org/list/public_suffix_list.dat
That was me pointing out what was plainly implemented in the code snippet I linked. It is obviously nowhere near the truth.
Right; top-level comment is saying that those are all missing from the linked code.