From the examples given, we can see that the homonyms are 'ideally' to be at the entries differing (a) in hyphenation(s), or (b) in the accents, or (c) in the meaning(s) (even when no diff. in hyphenation or accents), as mentioned by MW himself in the first image above [words which are different in meaning, but are identical in form (when rendered in Devanagari script, wherein both hyphenation and accents are not shown)].
So, we should strive to comply with this idea to the full extent, even though the marking is missed/skipped to economize the space in print, as there is no space-limitation for the digital text.
This is what the MW Intro says-
And the corresp. FN says thus-
From the examples given, we can see that the homonyms are 'ideally' to be at the entries differing (a) in hyphenation(s), or (b) in the accents, or (c) in the meaning(s) (even when no diff. in hyphenation or accents), as mentioned by MW himself in the first image above [words which are different in meaning, but are identical in form (when rendered in Devanagari script, wherein both hyphenation and accents are not shown)].
So, we should strive to comply with this idea to the full extent, even though the marking is missed/skipped to economize the space in print, as there is no space-limitation for the digital text.