Nk raises the issue we hinted at before: the status of Kantian TI. I think that so many efforts to repair Kant have failed that it becomes a problem in itself. The only person who got anywhere here was Schopenhauer. The Hegelian route is to eliminate the noumenal/phenomenal, but that is equally problematical.
The lesson of WHEE is that the level of representation and the thing-in-itself is meaningful and gives a clear example. But I have never quite explicitly taken that to a full discussion. The realm of Kant scholars is a bit off: they won’t disagree in public with darwinism, so a wall of silence descends on any discussion.
The issue of teleology here is essential for figuring out whey evolutionary theory goes wrong. But a noumenal analysis is rejected at once by scientists.