The only thing that was particularly suspicious to me was the screenshot of the tinder match, but I've known people who that for every match they get on an app so I didn't think too much of it.
Its been like 2 weeks since I listened to the interview but these are the big hitters I remember in the order they pop into my head:
1. The tinder thing (like you mentioned). She also said "I had a weird feeling about this guy" but gave no real reason as to why. Girls don't swipe on guys that give them the creeps unless there is a damn good reason, and Tom looks like a literally ape
2. Saying their goal as to protect the women of Texas then choosing to make the big reveal on KF
3. Rowan said she wasn't very online but was using a lot of jargon suggesting she was familiar with these places (could be mixing up with Katie a bit, so only 60% confident)
4. Saying she didn't consent to tom secretly recording her (and I believe saying she told him not to) and that he did it multiple times, but that he also never hid it and she had no logs showing her ever saying it made her uncomfortable
5. Saying she told Tom to stop being so rough, and the only texts backing this up was ones where she merely implied it was too rough and tom responds by saying they don't have to be as rough and have sex as much if its too much for her
6. They both took a bit too much enjoyment talking about things that were merely embarrassing for Tom in a way that feels more like vindictive-ex behavior than victim-raising-awareness behavior
7. BPD
Theres probably a lot more that I forgot, but those are what comes to mind.
This isn't to say that someone is a retard if they aren't picking up on these things or connecting the dots. Its just that if you're going to try to do an actual interview with them that is meant to be taken seriously, you have to be able to pick up on these types of things to be able to do it properly. This is doubly true considering Josh wasn't going in blind and knew a lot of the details beforehand. I'd probably never do an interview because I doubt it would be something I'm good at, but even if I was a good interviewer I would make sure its not out of my depth before conducting one like this.