Correct, and that is my whole point. If the build chosen has 1-5 skills with no purpose and is missing easy to choose skills that will give the build purpose, it is an incoherent build.
Which is untrue for most CR builds. There has been many CRs where I jumped on the build (which I have never played before) and finished 2-3 minutes ahead (in a 6 min GR) of a person who played and designed that build.
Tight for time and 6 min < 15 min are not the same thing. A pro can make a 14:59 clear that virtually no one else could match, while a noob can make a 3 min clear that many players clear faster.
Again with the woulda, shoulda, coulda’s. Most of us here get how builds should be built and is not what we are discussing. We are discussing that many of the builds that are chosen for the CRs do not have what you are saying they should have.