This doctrine / belief that Jehovah`s Witnesses have , surely raises a few questions that they do not address.
1.This spirit being challenged God by questioning his authority and offering Eve an alternative making himself Satan.
And this took place on earth ,the garden of Eden. So he who became Satan had access to the earth.
2. All throughout the Old testament , the Hebrew Scriptures do we find examples of Satan interfering with Gods plan of things either by himself or his followers .
3.Their are just too many examples to list individually ,however a few key ones would be , the Nephilim , Job when God in heaven asks him where he has been , and his reply , from roving about on the earth . , etc.etc.
4.And of course in the New Testament , where Jesus is taken up into a mountain to be tempted by Satan for fourty days ?
I digress here but why would Jesus the Son of God allow himself to be tempted for fourty days by an opposer of his heavenly father ?
5.Now for the big question : Jehovah knew in Eden when Satan duped Eve into disobeying him , why was Satan allowed to go back and forth between Heaven and Earth according to JW/WT Chronology for 6000 years .
from the deception of Eve until now 2019.
6. So from all of the above ,whats the big deal about 1914 ? Nothing ,Satan has always had access to coming and going between heaven and earth since he duped eve.
Just to reiterate ,
And seeing Satan always had access to the earth why did God allow Satan back in Heaven after he rebelled against him with Eve for all of those years ?
And confining him to the earth , where he has always had access to doesn`t seem like a big penalty to me .
So thinking about all of the above i can`t see any significance about the year 1914 , its a non event .