>you think this particular dictionary chose to incorporate the accent in the word-listing?

well, we've got the whole thing online, why don't we take a look....
http://65.66.134.201/cgi-bin/webster/webster.exe?search_for_texts_web1828=pronunciation

lexicographer Sidney Landau gives us a clue to what was going on: "One modern critic, Robert Secrist... calls rather engagingly for a return to the 18th and 19th century systems, which generally avoided respelling, instead merely marking certain vowels of the entry word with diacritics to indicate the specific sounds."