Too many man made conclusions.
And be not drunk with wine, wherein is excess; but be filled with the Spirit.” (Ephesians 5:18)
Your conclusion is that the wine they drink was unfermented, how could they get drunk on it.
(John 16:13).
Right on verse 13, verse 17 says nothing about a happy and Bible-centered conversation.
verse 19 says nothing about a continuously thankful heart.
Verse 20 says nothing about a right attitude and relationship with one’s spouse.
Maybe I am not understanding this the way I am supposed to, could you explain?
Not today. It is time to assemble according to the summons, to honor The Lord.
Yes, I believe so. On the first issue:
Whether or not the reaser agrees, Morris's view is that use of CNS depressants or other intoxicants for recreational effects will hinder filling (= control) by the Spirit, if He has to wrestle with both chemistry, one's enjoyment of its effects, and an attitude toward His commands to leave that lifestyle alone. These are man-made or naturally-occurring poisons, not food supplements.
I think Morris is quite right, having been on both ends of the spectrum myself. I think you are assuming that wrong conclusions were made. Think it over.
On your second point(s), the author's text has not made it crystal clear that verses 16, 17, 19, 20, etc. are not referring back to John 16, in which context his comments would be nonsensical. Rather, the verses refer back to Ephesians 5, from which his theme verse is taken. There, the comments on the verses are entirely intelligible and fitting.
Considering your dilemma, I saw right away why you found it confusing. It will be OK when you read the correct verses and match them with his comments.
(Just trying to get back to you ASAP.)