Come on now, we all know the three of them are pedos, but Popes greet thousands of people or more like this every year. The prolific ones sometimes did over ten thousand a year, as it's literally seconds.
I would be more interested in knowing more about the person or people who set up the meeting.
They're mainly conservatives and trolls who are lying and pretending to make jokes.
Conservatives have been doing this for a long time, they think they're being subtle and tricking people into thinking they're serious. It's built on the classic idea they have that everyone secretly agree with them, and they use things like political compass memes to try and convince people it's okay to say it out loud. But they never seem to realize that most people don't "say it out loud" because they don't agree.
TL;DR: They're stupid people who think they're really smart. And it's sad to see them flailing around and drooling at the mouth while thinking they're Machiavelli.