From experience, on a high speed descent the master caution has illuminated to reduce v/s to let the cabin catch-up, then why didn't the Air France A330 caution appear if not earlier, in concurrence with their 10000fpm ROD? Surely the crew would have felt pressure in their ears?
It would have been one small voice among a cacophony of buzzers, alarms, chimes, and other computerized admonishments that were bombarding the crew over that period of a few minutes.
While I am unsure of the mention of this within the few pages of compressed data recordings and voluminous (and unrelated as to cause) ancillary data provided by the BEA, there was a leaked maintenance message sent via ACARS circa 02:14 regarding cabin rate.
Earlier suppositions were this advisory alarm was precipitated by a loss of ADR data to the pressurization system, but with the FDR information released, we now know that aircraft descent rate was the more likely trigger.