Mine was very similar, except I told them to ignore the stranger (didn’t have much of an effect apparently), and I told them not to step through the portal. They then wandered off, and mumbeled something about “we should drink the water”.
That was actually a great moment for me, because the next location was only about a thousand units away from my current one. I remember running and jetpacking like mad, yelling “DON’T DRINK THE WATER, I’M ALMOST THERE!”
When I got there I got some footage similar to how it’s described in your log (couldn’t have been made with any normal camera etc), except it described the traveller starting to glow red, falling down, transforming into a red orb (or something red, at least), and vanishing.