There are interest groups prioritising objectives other than building the infrastructure. Otherwise it is impossible to justify the actual outcomes of these projects - it goes waaaaay beyond incompetence and although everyone identifies a different interest group there is consensus that they exist. And my personal point is that the US (anglosphere, really) has a lot of systems to identify minority interest groups and make satisfying them a key part of completing a project.
And therefore the problem isn't that people are refusing to learn, the problem is that building infrastructure isn't a priority. Someone who builds good infrastructure doesn't have any useful lessons to share, because that wasn't Goal #1. The people with veto power over the projects would like the infrastructure, sure, but if it doesn't get built cheaply and too a good standard then that isn't going to be a shock to the system that causes change.
This article is subtly suggesting that there is a competence problem. I'm saying no, I think the people involved in this are plenty competent. There are just interest groups with enough power to scuttle the project and they need to be identified and negotiated with.