Perhaps.... That does seem to be the most likely cause.
[Lexaeus nods thoughtfully, considering the timeframe and what they had to work with. He spreads both hands in a gesture of silent apology, before lacing his fingers back together.]
I know that Sora is the Keybearer, a hero of Light whose journey spans across worlds as he battles the Heartless, a boy who is no doubt vastly important to achieving our goal of regaining our hearts. Beyond that, I know little--I have yet to even meet him.