I disagree, but your opinion may come from your ignorance (sorry, lack of knowledge perhaps) of Vietnamese. First, it's not a transliteration, it's their native alphabet. And the diacritics mark tones, which is a very important part of the language. An example from the article itself:
> In the case of Hỏa Lò Prison, for example, “hỏa” means “fire,” and “lò” means “furnace”: the Burning Furnace Prison. Without the marks, “hoa” means “flowers,” and “lo” means “worry,” rendering the term “Hoa Lo” meaningless.
Your example doesn't work because (a) it's an address, not text meant for reading and (b) turning ș into s only alters the pronunciation, while the meaning is still intelligible.
> In the case of Hỏa Lò Prison, for example, “hỏa” means “fire,” and “lò” means “furnace”: the Burning Furnace Prison. Without the marks, “hoa” means “flowers,” and “lo” means “worry,” rendering the term “Hoa Lo” meaningless.
Your example doesn't work because (a) it's an address, not text meant for reading and (b) turning ș into s only alters the pronunciation, while the meaning is still intelligible.