Basically, yeah. There's no expectation of permanence like there is with social media. Recording/transcribing and publishing would be a gross violation of trust.

Someone could point a directional microphone at you in the park, too, but one doesn't typically worry about that.

Them pointing a microphone at you in a park takes planning, effort, work, and people, which is why it doesn't happen often.

When you've volunteered to carry and point the microphone yourself it's a totally different ball game.