[He doesn't know for sure since, well, this is very much NOT his area of expertise. It's more Merlin's thing, and even Merlin doesn't know what's up with this place. All he knows is that even though, perhaps, he could serve to have a more nuanced look at magic rather than always fighting against it - he can only see this as needlessly cruel for everyone.]
[So he just nods, feeling a little guilty, despite all that, that he should keep him from seeing who he wants to see - but it's too dangerous.]