I'm aware of this shift and I admit I found the change a little unexpected and jarring at first. But I don't really agree with the thrust of this question.
For one thing it's not like the question isisn't "hidden" in that big bold block of large-print text at the top of the page. Yes sure, when viewed like an email, it is slightly odd. But once you know about it, it's easy to adjust to... so I see no actual problem with this form.
I do feel it's had a positive impact in another way though. I've lost count of the number of "questions" written as:
I did this ... and that happened
... "Yes, obviously it did, that's what it's supposed to do, now what were you expecting, or what were you trying to do, or otherwise why are you here asking your "question". Incidentally it does help to ask a question when you ask a question".
What I mean to say is this: Prompting people to package their actual question into a short succinct one-liner as prompted them to tell us what their question really is.
I feel it's also reducing the number of "Please help!!!" title's I've seen. It's reduced the number of times I've been wholly disappointed when readingby a question because I. I really hate clickbait. The correlation between question and title was previously pretty poor.
So in summary I don't think we should push for the prompts to change.
As far as writing questions myself, or advice to others... Yes, it's not a bad idea to copy-paste your question title to the very last line and ensure the rest of the question nicely builds to it and the wording still makes sense.
I would advise everyone to do this as it's a great check that your title is meaningful in context of everything else you've written. It also scans more freely.