It doesn't seem like anyone's been repairing the lab. Which is fine with Sans, if it means this piece of Okpaza can grow more easily, but it is a little strange. It's a terrible way to try and keep something contained. But that was always futile, wasn't it?

"I changed my mind about the messenger of Okpaza thing." He didn't choose differently, though; he didn't choose anything. He always was a messenger. What changed was that he decided to embrace it.