The reason Jen looks so calm in the video is that she is getting EXACTLY what she wanted.
Agree, the whole episode was clearly all a power trip on Jen Ives’ part.
Attending a meeting of a group that Jen believes is anti-trans = "Look at me, I think this is an event where trans people aren’t welcome, but I’m going to come in anyway and you can’t stop me."
Using the female toilets despite the conference organisers legitimately designating the toilets as single-sex = "Look at me, I know everyone has been asked to respect this as a female-only space, but I’m going to use it anyway even though I’m not female and you can’t stop me."
Taking a clandestine recording device into the toilets with past form for publicly mocking the noises females make when using toilets = "Look at me, I can take away females’ dignity and privacy if I choose to, and you’ll never know when I might be recording."
Baiting a conference attendee by calling him an offensive name = "Look at me, I can push your buttons and make you lose your temper so that I look like the victim."
Jen looks so calm in that video because Jen is the one in control, and has achieved exactly what Jen set out to achieve.