But it isn't working well as they are all starving for talent. When your problem is that you can't find enough people and your pipeline is designed to be a strong filter, you are just exasperating the problem and need to rework your pipeline.

That is you see a lot of talk about this because "the system" isn't working. Some companies are trying new things, but you have to find them among all the ones who don't spend the time to try to find a better way.