Absolutely not true, it simply means that the editor of that particular category did not believe your website was themed to that topic correctly. Likely they sent the website review over to another editor at another topic.
The bottom line in DMOZ, is that they are looking for unique and interesting websites, not product / information sites that 'seem' to look a little nicer than the last product website but offer nothing new to the end user.
Offer something truly unique on your website, something others do not that is useful, submit to the best category you can that represents you, and be patient.
What exactly is the issue? That website X was not listed fast enough? :)