The quality of most such articles really is extremely low. Apart from a few books from experts like the Ericson "Real-Time Collision Detection," and the codebas

The quality of most such articles really is extremely low. Apart from a few books from experts like the Ericson "Real-Time Collision Detection," and the codebase for open source engines, public knowledge about this stuff is basically missing from the Web. At least these days there are good books. Ten years ago, AFAIK, your best options for the cutting-edge concepts were GDC session notes and academic papers.