Our organization would love this feature. Similar to the capability.

Instead of the first words/sentence of the search result body, find where in the search result body that the first search term is found, highlight it (bold or yellow highlighted), then add up to 10+ words before it and up to 10+ words after it to give it some context. This would be far more useful than the first words/sentence of the search result body itself (unless the first words of the search result body is the actual search term).

I would also like to see this added.

What I've done in the interim is change "question.long_answer_sample" to "question.description" in search results / categories, so I can use article subtitles as the Search Result's Descriptive Text. Not sure if it'll fit your use case but hope it helps!