Jehovah's Witnesses have had to revise their chronology and various doctrinal interpretations due to events and scholarly corrections - SBF
When did "scholarly corrections" ever factor in JW beliefs? They have moved their end-time predictions more times than you can count because of one thing - failure.
the one teaching where they have been consistently ahead of the curve is the importance of Jehovah's name
"Jehovah's name"! Talk about begging the question.
the phenomenal success of this teaching
"Penomenal"? The use of the divine name in the early church remains speculative. It was never "Jehovah" at any time. How exactly does this amount to a "phenomenal success"?
"in the last days".
What last days exactly? Have you taken leave of your senses?
to champion his name at this crucial time if they did not enjoy his blessing and support?
What "crucial time"?
What evidence do you see of god's blessing and support?
Is it the failed prophecies? The lies, deceit and cover-ups? The thousands of cases of child sexual abuse and their on-going refusal to accept responsibility? The tens of thousands who have died from lack of essential blood transfusions based on a facile interpretation of the bible? The constant begging for money? The closure of branches and kingdom halls? The betrayal of long-time Bethelites? The cruel breaking-up of families?
Is this the sort of evidence of blessings you had in mind?