Reading the issue again, I see what you mean, but I don't agree with the "there'd have to be something concrete" argument, just because of the fact that they've already alluded to Daniel more than once. Hell, I would have even been happy with "I went insane for awhile and got involved in magic things I really shouldn't have and one of the people/things/whathaveyou brought me here where your predecessors helped me put myself back together." It wouldn't have been blatant, but it would have been more substantial than "oh, all the past years just seem like a blur to me."