I think this interview is very enlightening about DB/FD:
http://www.iancgbell.clara.net/elite/archive/b5081501.htm
Same goes for the overall FAQ and table of who wrote what in elite:
http://www.iancgbell.clara.net/elite/faq.htm
As I mentioned, the fact that Chris Sawyer is actually a shareholder in the company (8.2% - http://www.frontier.co.uk/investor_relations/shares/) it doesn't give much weight to what's being said here.
Take that away, and a lot of this just looks like sour grapes and personal gripes.