It seems like a minor concession since most uses of intra-word emphasis are more cutesy than communicative[1] (it is of course sometimes very useful when there is a subtle syllable emphasis, or a suble typo that you want to point out).

[1] Maybe I’m being a hypocrite here? I definitely am in favor of a lot of “cutesy” ways to communicate (things that are more stylistic than necessary). But not intra-word emphasis, really.