"It's definitely the safer route" she says, carrying an unconscious person across an unsecured horizontal ladder over a 6-story drop.
I mean, I get she isn't sensible...
Well, she was talking about how this was the way Manana came up to the roof, so I guess in her mind, the alternative was to go the way she came up herself and carry her down the wall of the building. In that peculiar logic, this was indeed taking the safer route. :p