It was not always good to disappear out of thin air, especially if it happened against one's will, it was terrifying. The team of four did not only disappear, but they seemed to have teleported in some way as well!
The good thing was that they were conscious though, and Tim had been the first to complain as soon as he noticed what had happened. Well, he hadn’t caught up entirely, but he still had this inward sense that they had teleported, he was sure of it.
“If we're in an even smaller universe, help me god… I'm going to lose my shit!” He complained.
Tim perhaps overreacted, as it wasn't the worst thing in the world to pierce through universes, no. It entirely depended on how hostile the universe was, and as far as he was concerned, he was not in danger right now, but rather, he was just engulfed in utter darkness. This was a little scary, but he didn’t really feel endangered, though it didn't take long for him to get weirded out.