It is situational, but it very much seems like a thing you'd squirrel away and bring out when you find a system where the differential is helpful.
DNS names are a thing where Sales is going to tell the Engineer that they can't issue the customers randomized ASCII names like abxuewrf.my-thing.example because real customers want to write our-brand-name.my-thing.example instead - even though you already know bad guys will choose billing.my-thing.example and name-of-bank.my-thing.example and every other unintended bad choice even before we realise about likelihood of these confusion bugs in software like Python.
DNS names are a thing where Sales is going to tell the Engineer that they can't issue the customers randomized ASCII names like abxuewrf.my-thing.example because real customers want to write our-brand-name.my-thing.example instead - even though you already know bad guys will choose billing.my-thing.example and name-of-bank.my-thing.example and every other unintended bad choice even before we realise about likelihood of these confusion bugs in software like Python.