So Paul was wrong to call out false apostles and say that they are preaching another gospel and so are accursed, in other words, not saved?
How about 1 Timothy 5:20:
"But those elders who are sinning you are to reprove before everyone, so that the others may take warning."
All the ones who are giving prophecies in these videos are taking the Lord's name in vain and are prophesying lies. Anyone who prophesies performs a leadership function and if they are doing unconfessed sin, They should be rebuked in public.
Do you think that Paul was too harshly critical here:
"Alexander the coppersmith did great harm to me. The Lord will repay him according to his deeds. 15You too should beware of him, for he has vigorously opposed our message" (1 Timothy 4:14).
And,
"holding on to faith and a good conscience, which some have rejected and thereby shipwrecked their faith. Among them are Hymenaeus and Alexander, whom I have handed over to Satan to be taught not to blaspheme" (1 Timothy 1:19-20).
Even though Chris Rosebrough uses humour to show the absolute falsehood and blasphemy of these prophesies, he has a very serious intention - to save people who are deceived by these liars, from hell, because people who support them share in their blasphemous lies and will share in the judgment and condemnation that will come to them.
By the way, Elijah mocked the prophets of Baal on Mt Carmel. Look at what he says to them:
"And at noon Elijah mocked them, saying, “Cry aloud, for he is a god. Either he is musing, or he is on the toilet, or he is on a journey, or perhaps he is asleep and must be awakened” (1 Kings 18:27).
So mocking false prophets and teachers is absolutely Biblical. However, humour and mocking aside, the serious issue here is the difference between heaven and hell for those who are deceived and not only scammed out of their money to pay these charlatans, but they are also being scammed out of true Biblical Christianity and the hope of heaven.