Actually not true.  You aren't going to convince engineers with "but the internet said" You need an official million dollar study by a set of credentialed university engineering teams, having physics-accurate simulation AND physics-accurate building model down to the nuts and bolts; and then you run the simulation millions of times on a computer and you show that in no scenarios did the buildihng ever even come close to a total symmetrical collapse on its own foot print.  They showed there weren't even collapse scenarios but--like many other large steel structure fires, left a skeletal structure in the case of an unrealistic or 'fringe case" large fire