When it came to the thieves and robbers I talked about both the Protestant and Catholic ways of reading this text as I often do. Protestants would say thieves and robbers exist. They would be teaching something very different from the truth (as they see it). Often they would include Catholics and many other Protestants. Conservative Protestants would put liberal Protestants in this category but not those who are closer to them theologically. It all made sense to me as when I was Protestant.
The interesting thing is it didn't make sense to the prisoners. They get a mish-mash of Protestants denominations coming to the prison. They didn't get how the sheep would know Jesus' voice. As a Christian Reformed person talking to other Christian Reformed people I could easily appeal to common sense. Yet this sort of sense is not common to people who have experiences many contradictory religious ideas. That is actually more common these days.
Then there is the phrase that Jesus says that Protestants mostly ignore. He says in verse 16 that "there shall be one flock and one shepherd." Catholics see that as an obvious reference to the church and the pope. Protestants? Like I said, it is mostly ignored. To the extent that it means anything it would be spiritualized to the point where it becomes unfalsifiable. That is this invisible group of people has this invisible bond of unity with this invisible shepherd.