it's fair to want to know why, but I've already disclaimed that it may not be communicated why. Its right there on the front page; it is what it is and I'm not inclined to change it. I only ask participants to read, understand, and agree.
It's possible the reasoning was given before disqualification, which would actually remove the submissions page. This is something I only just learned about myself. I'm not sure if the affected participant gets a notification then or if it deletes since the page disappears. Not saying that did happen necessarily, but it is possible.
But again, quests found to qualify that were removed in error can be re-submitted with an invite. When I get time I will look into it more closely.