He hadn't meant it as an insult. When the two spoke over what passes for long distance communication in this place, Thane had only thought their matching of events was odd. Not once did he consider Shepard to be suspect. Shepard just seemed...like Shepard.

"I don't recognize your face, no. Perhaps somewhere out there is another Thane who would." A sobering thought. He's the odd man out, after all, with Garrus being just as confused about Shepard as...Shepard. "I could be the one who is...displaced."