We're so quick to assume that Gryffindor=Good, Slytherin=bad. We're so quick to assume that just because something is looking the way it is that it's the case.
Sometimes what we see isn't always right. Look at what we know of the past. We where so quick to assume that Sirius Black was the one to betray Harry's family. (oh and for the record I've never maintained that I was talking about myself in an early post) We are so quick to assume the actions of others make them the guilty party.
Why don't we just leave the speculation out of the whole thing and wait for a result.
Because there is a muggle saying my father told me: when you assume you make an arse out of you and me.