Huh. Your comments made me wonder if there are any English words, perhaps acknowledged in a dictionary, containing punctuation. A quick poking around suggests the answer is: no.

I don't think that is true. Look at what your sentence fragment would be:

the a'os'rophy can al'o in'i'ate pro'nun'i'tion

If you leave out those letters you are omitting the important beginning sounds of each sylible. You generally want to highlight that sound and hide unnecessary characters.

If you had taken the time to listen to the video, you would have heard that the 'w' in 'northward' was indeed omitted in the pronunciation as well as in the spelling.

I guess that is what I meant by conveying accent, but pronunciation is the correct term, evidently escaping me at the time.