If you're having to look at GitHub, it seems like you didn't find a situation yourself where the requested feature would make you happier. I would advice you not to attempt to find use cases beforehand, just let them find you.

Matz, alas, I cannot offer one. You see, Ruby--coding generally--is just a hobby for me. I spend a fair bit of time answering Ruby questions on SO and would have reached for this method on many occasions had it been available. Perhaps readers with development experience (everybody but me?) could reflect on whether this method would have been useful in projects they've worked on.

You haven't shown any real use case yet. I don't deny that the functionality alone would be a good shortcut itself just like any other proposal we see every day.