According to AF press conference:
Take off weight 233T (including) fuel 68 T
that is precisely max. takeoff weight.
Aircraft Family - A330-200 Specifications
**speculation**
could someone have tampered with the documented weight in order to stay within margins, avoid timeout etc?
could the pilots have been unaware they were too heavy?
could a sudden temperature change flying over an upwind in a CB have pushed the airplane beyond coffin corner, because the margins were consumed by the additional weight?