While I am not a particular fan of street corner evangelism (like that shown in the video) because I strongly doubt its effectiveness, there seems ample example from Scripture of the Apostolic Evangelists leading with the harsh “bad news” to bring into clarity the problem of sin, and then to offer the “good news” of forgiveness found in Jesus Christ. For example, the woman at the well ...
[Jhn 4:17-18 NASB] 17 The woman answered and said, "I have no husband." Jesus said to her, "You have correctly said, 'I have no husband'; 18 for you have had five husbands, and the one whom you now have is not your husband; this you have said truly."
Jesus first brought her sin front and center before revealing ...
[Jhn 4:26 NASB] 26 Jesus said to her, "I who speak to you am [He.]"
Peter in Acts 2 is not afraid to lay blame for the death of the Messiah on the heads of his fellow Jews ...
[Act 2:22-24 NASB] 22 "Men of Israel, listen to these words: Jesus the Nazarene, a man attested to you by God with miracles and wonders and signs which God performed through Him in your midst, just as you yourselves know-- 23 this [Man,] delivered over by the predetermined plan and foreknowledge of God, you nailed to a cross by the hands of godless men and put [Him] to death. 24 "But God raised Him up again, putting an end to the agony of death, since it was impossible for Him to be held in its power.
And it was this reality that God used to break their hearts of stone ...
[Act 2:37 NASB] 37 Now when they heard [this,] they were pierced to the heart, and said to Peter and the rest of the apostles, "Brethren, what shall we do?"
Which opened the door to Peter’s presentation of the Good News that led to the first of many great ingatherings.
So while it is not MY cup of tea, I can hardly fault those who follow Jesus’ and Peter’s example of first showing people the bad news so they are ready to hear the good news.