It's quite easy to go tell other people what they should do with their time.

These researchers are in the business of improving algorithms. Implementing them in large industrial (or open source) code bases in a maintainable way -- and then actually maintaining that code -- is a different skillset, a different set of interestes, and as was pointed out, besides the point.

Either you believe their results, then be grateful. Someone (yoU!) can implement this. Or you don't. In which case, feel free to move on.

Your tone comes off as entitled.