Okay, sure, but eventually the show has to tell us WHY things are important. At some point, I'd hesitate to even call things important at all if they require a reveal far in the future to make sense -- at that point they're just foreshadowing or easter eggs. Like others have said, we got some useful info in this episode that makes sense even now, but there have been too many episodes this season where manga readers insist important things happened but I have no idea what they were.
Also, not targeted at you specifically, but at everybody on this page: aren't we not doing any talk of the manga beyond the anime in this thread?