So, technically, we would have to describe a state of no absolutes existing by "except for this one absolute (that there are no absolutes) there are none existing"?
It is just semantics: The absence of any laws, rules, objectives is thinkeable, and we need a way to express this notion. If you want to equivocate this notion to the assumption of positive rules, laws and objectives existing (and don´t want to acknowledge the difference), then feel free to call it an "absolute". This equivocation does not seem to do justice to the idea that´s meant to be expressed and the distinction that can be made and that is significant.
If you come to a holiday camp and ask for the rules, and you get the answer
"there are no rules here", would you start quibbling with semantics like "but this is a rule itself"?
Probably not. You know what´s meant by the statement, and despite the fact that this meant condition is thinkeable and possible there seems to be no way to express it which is not self-contradictory.