While on a personal level I agree with you, there is a saying in Dutch: "je moet niet wrijven in een vlek", which translates to "don't rub in a stain".

Sort of like the Streissand Effect; if BB starts posting press releases about "breaching trust", filled with apologies, the audience that will become aware of this issue will be a lot bigger than it currently is.

So from a PR persepctive, a one line low key "we pushed a fix" reply makes total sense.