Virtually all of the sources you have cited are Pentecostal as are the people you have talked about in association with healing miracles, etc. When I say Pentecostal I'm not talking about a specific denomination. I'm talking about holiness churches which stress speaking in tongues, healings, etc.
You wrote this in answer to my saying Baha'is don't believe in demons. I don't see the connection.
I think the story of Jesus' temptation takes place at the beginning of his ministry, not the end. I recognize that the New Testament (unlike the Old) views Satan as a demonic figure. So does the Qur'an for that matter. But the Baha'i scriptures see Satan as the evil whisperer within each of us, not some anti-god outside of us.
Where does it say that Jesus descended into Hades and preached his victory over Satan? The closest thing I could find is 1 Pet 3:18-20, but it says nothing about Hades or Satan.
Matthew 12:40
For even as Jonah was three days and three nights in the belly of the sea monster, so will the Son of Man be three days and three nights in the heart of the earth
Have you read Book of Jonah? Otherwise you might not understand, maybe.
1 Pet 3:19 "...spirits in prison,"
That's hades, read the verse below.
Acts 2:31
He, foreseeing this, spoke [by foreknowledge] of the resurrection of the Christ (the Messiah) that He was not deserted [in death] and left in Hades (the state of departed spirits), nor did His body know decay or see destruction.
In our behalf Jesus entered the great battle against the devil and sin to give us righteousness and eternal life. He died on the cross, he was so tempted in Gethsemane, so obviously as he made a way to Heaven through the cross, (Satan defeated - since people will enter heaven).. so what he proclaimed in Hades was obviously victory over Satan.
Jude 6 informs us that the devils present state of existence is in hell with his evil angels. There they are being kept in darkness and bound in everlasting chains for their final day of judgment on the last day.
Jude 6: . . . and angels, who did not keep their sphere of authority but deserted their own habitation, he has kept in everlasting bonds under the darkness of hell for judgment on the great Day.
1 Peter 3:19 tells us that the devil and his angels are bound in prison, that is hell, where the exalted Christ Jesus descended to proclaim his victory over them.
1Peter 3:19: . . . in which he went and preached to those in prison, . . .
2 Peter 2:4 confirms what we learned in the two previous verses. The devil and his angels have been sent to hell, where they are being held in gloomy dungeons for their final judgment and ultimate defeat.
2 Peter 2:4: For if God did not spare angels when they sinned, but handed them over for judgment, holding them in chains of darkness in hell; . . .
We might wonder how the devil and his angels feel about the Lord having bound them in hell for the judgment that is to come to them. The following passages provide some insights.
From Luke 8:30, 31 we learn the devil and his angels have no desire to be condemned to the abyss of hell where they will be tormented.
Luke 8:30 Then Jesus asked him, What is your name? and he said, Legion, became many demons had entered into him.
Luke 8:31 And they kept imploring him that he should not command them to go away into the abyss.