Agree, the sooner we evolve beyond simple correlation the better. Cannot recommend enough the Elliott review you linked. Truly an excellent resource.
I have heard horror stories from statisticians trying to highlight this 10-20 years ago and finding zero traction in oncology journals. But last year during the annual meeting of the Kidney Cancer Association we included a think tank that essentially discussed this thread. Was very pleasantly surprised by how well it was received by clinicians and patient advocates with lots of engagement and great input. This is being drafted into a consensus statement manuscript to be submitted for peer reviewed in the coming weeks. Will link to it once it is out.
There are a lot of challenges to overcome and we will learn tons from practical usage in the coming years. But this appears to be a case where ideas took time but now are coming into the spotlight. Hopefully the momentum will not fizzle away.