If you look at the cover of the original 'The Watch Tower' it says;
THE WATCH TOWER
AND HERALD OF CHRIST'S PRESENCE
But why this?
On page 20 of the Watch Tower 1879 Vol 1, CTR explains.
"We think we have good solid reasons - not imaginations- not dreams not visions, but Bible evidences (known to the majority of our readers) that we are now "in the days of the Son;" that "the day of the Lord" has come, and Jesus, a spiritual body, is present, ... This is the signification of our subtitle "Herald of Christ's Presence."
So, the purpose of the subtitle was in fact, according to the first edition of The Watchtower, to convey to the minds of the readers, Russell's teaching that the "parousia" was already ongoing.
So, for that gas bag to enter the lunchroom in 1914 at Bethel, after his failed prophecy, and announce to everyone that Jesus had indeed come, only invisibly, was a pharisaical affront of immense magnitude.
That shitebag had been teaching that Jesus was already invisibly there for over 35 years and now he's going to.... what??? ....teach something new??? What?? Jesus came last night??? Holy cow... and now we see it was an invisible coming... STOP THE PRESSES
And what the hell of the last 35 years up till that, with the Watchtower bearing the title announcing that the invisible coming had been going for the last 35 years...
How would you have felt, to be sitting there, after a lifetime being taught that the invisible presence was ongoing since before 1879 and then to be told that it just happened last night.
Would you have had a WTH moment?