Anakin doesn't find the faltering suspicious; this man, whoever he is, is obviously having a hard time dealing with arriving here. Anakin himself hadn't dealt well, but he'd also been drugged almost immediately, which made the experience a bit different. Since then, he still hasn't dealt all that well, but most people don't. It's designed like that.

"Well, just Luke, considering we're both Jedi, I think it would be in our interests to work together on how to get out of this place. The more of us working on a way to return everyone to where they belong, the faster it will go, right?"