But tell me, what is the point of that?
It would be a compromise ... Many stakeholders will tell you that getting no curation rewards at all anymore decreased the attractivity of holding HP too much (also don't forget that since EIP curation rewards got increased to 50 % due to their intervention).
It will be hard enough to convince them of my (and as it seems also @theycallmedan's) suggestion which is somewhat less 'radical'. At least getting some curation rewards could still motivate stakeholders to upvote content at all - and as there wasn't any advantage to upvote early, everybody would be free to upvote what they really like.
That said I personally could live well with your suggestion, and I am not against at least considering it.
Adding a ton of interest to the bank accounts works in their favor more than curation does. They don't have to think about it. They don't have to worry about some bot upvoting the right stuff or doing it manually. They just receive passive ROI. That's what investors want anyway. It's fair and it doesn't cater to developers like curation does.