If you were to require NCRs for all non-ASCII characters, the passage would become unreadable, difficult to maintain and much longer. It would, of course, be much worse for a language that didn't use Latin characters at all.

Jako efektivnĕjší se nám jeví pořádání tzv. Road Show prostřednictvím našich autorizovanǽch dealerů v Čechách a na Moravě, které proběhnou v průbůhu zá ří a října.

It is much better to use an encoding that allows you to represent the characters in their normal form.