Nice article, but the basic premise of the article is fiction not fact.
Here is a description from Richard Hymans authoritative tome "The History of the Olympic Trials."
“In order to simulate the Olympic experience, athletes were required to go through the same number of rounds that would be expected in Mexico City. Unlike the 1964 OT, winners of the SOT (Semi Olympic Trials, called the "Semi-Trials" in T&FN) were NOT granted a place on the Olympic Team, but the regular standard of first three past the post (in the OT) was applied. The SOT only served to eliminate some athletes from the Echo Summit meeting. The crowd were dissatisfied after conflicting announcements were made as to whether the winners at the SOT were automatic Olympic qualifiers (they weren’t), and the possibility of an Olympic boycott by black athletes led to shouting matches between athletes, officials and the press.”
This can also be easily confirmed by a contemporaneous source, Track & Field News, I July 1968, II July 1968, August 1968,
All ideas that the winner of the SOT (in this case Dave Patrick) had an automatic spot came from the mistake belief that the 1968 Trials were being run under the same format as the 1964 OT. It wasn't. It didn't help matters much that the announcer at the SOT had wrongly said the same thing.
The SOT selected 10 individuals in each event for the FOT. The FOT selected the first three for the Olympic Team -- as it should be.