Kate may not care who or what any of them were, but Sara did. Not to a point that she would have an immediate outward reaction, but she wanted to know who and what she was dealing with just in case. When she arrived here she had been told that everyone got along, but that didn't do it for it.

Just because one of them was an Android didn't mean he was Skynet. Just because one of them was a plant didn't mean he(?) was Swamp Thing. But better to be sure.

"Cool, when in doubt, follow the masses. Unless anyone notices them doing something stupid."

So she turned in the direction that Conner had pointed and headed towards the others that were here. If no one wanted to discuss the visions, that just made things easier. Even if it didn't satisfy her curiosity.