Here is an article to refute the theory of it not being included ----so we can go back and forth on what is and what isn't included in God's word but the real truth of the matter is ----We will believe who and what we want to believe we have free will to do just that -----
I am only posting the pertinent part of this article which refutes the notion that this was left out -----
read all here ----
https://www.compellingtruth.org/John-7-53-8-11.html
Now, those who do believe this story is part of inspired Scripture make the argument that so many Greek manuscripts included it that it cannot be ignored. As for why it doesn't appear earlier,
some say it was removed by those who feared women would feel freedom to commit adultery since Jesus forgave the adulteress in this story. Later, scribes who knew the story essentially overruled that decision and reinserted it.
All this leads to some people questioning the inerrancy of the Bible. If this passage is under question, maybe others are, too. We believe the original autographs, the first writings biblical authors made under the inspiration of God, are without error. We have none of those original autographs, but have recreated them from literally thousands of ancient documents and citations. Theologians acknowledge that some phrasing or words may come under scrutiny, but no important doctrine is in doubt. Scholastic review may be one method God uses to ensure His Word stays pure.
I say -----Scripture gives Grave warnings for anyone who removes or adds to God's word ------so wouldn't want to be one of the ones who removed it or added it back in ------tampering with God's word is a big NO NO ----just saying
The words Some Say in the article ---
some say it was removed -------says it all for me -----People wanting to cast doubt and fear as to the truth of God's word ----a bunch of hoop la
Satan still rules in this world and his main concern is to make people doubt God's word -----some say this and some say that -----what it really boils down to is what each person wants to believe about what Some Say ------
Some Say --- Jesus was gay ----Some Say ----Jesus was married and had children ----Some Say ---- Mary Magdalene is the woman caught in adultery -----Many Say ---- there were 3 wise men that went to see Jesus ---
We have a choice to believe what Some Say ---or what God Says -----
God will always win in my choice