Awake 1968 The increase of lawlessness,,, the 1968 generation was a rebellious one.
1968 protests .... https://en.wikipedia.org/wiki/Protests_of_1968
This is my assumption: JW interpreted this lawlessness of the 1968 as a certain sign of the nearing of the end besides the chronology. So JW again are only reacting on the world events
like also Rutherford reacted on the great depression 1919 and the release of prison of WT-direcots, the fear facists, the fear of communists and the cooperation between dictators and the church.
all his thelogy are reaction on the world events. ikewise the 1914 theology was seen true after the world war - a reaction on world events. Each horrible world event was interpreted as sign of end.
ENDURANCE meant for granpa in reality: forget your former friends, who left because they did believe in dates or have been excommunicated because they stumbled, forget them, dont speak with them, they became apostates, they are not our friends, those date-believing apostates. Now believe in the new explanation that we got from the slave, namely that "some JW believed in dates and were not true christians".