Retry only incorrect option for Rise quizzes?

Warning: Rant incoming...

Wondering why, after so long. this is still not an option. I found conversations/requests from years ago asking for this. 

If a quiz has anymore than a just a few questions, it's just mean to make them have to redo the ones they got right when they may only be 1 or 2 short of the passing mark. 

I recognize one can use a Storyline block, but doing the extra to format to match a Rise course is one strike against it and that many clients don't have SL for future updating is another (big) strike. Surely it's not a huge amount of effort to add this feature.

Please advise if you have any intention of providing this option in the future. It would be most appreciated by designers AND learners.

Rant over.