At a Eurovision press conference on Thursday, Golan was asked whether she had "ever thought that by being here you bring risk and danger for other participants and public?"
When the Israeli singer was told by the moderator that she did not have to answer the question, Klein chimed in: "Why not?"
Golan replied: "I think we're all here for one reason, and one reason only, and the EBU is taking all safety precautions to make this a safe and united place for everyone, and so I think it's safe for everyone and we wouldn't be here [if not]."
Earlier, when Klein was asked if his song could live up to the Eurovision slogan and unite people by music, he replied: "I think that's a good question for the EBU."
On Friday afternoon, the EBU cancelled a press conference involving UK entry Olly Alexander and the other "big five" acts who did not need to compete in the semi-finals.