Seems like some good constructive criticism there to me. Common sense should prevail here, Si isn't going to get it right first time, it's his first production and has filmed it without the aid of any "professional" equipment or assistance so obviously don't expect professional quality.
If anyone has any ideas on how to improve both quality and content for the next one I'm sure Si would welcome any suggestions
As for other people I suggest comments are kept to a constructive manner on the subject in topic instead of a personal nature
Darryl