Google will happily take a slap on the wrist and pay out another few hundred million, as they have done just a few months ago. Might even pencil out PR wise to ensure Google controls the narrative on why these two employees were fired.
Silence is not legally actionable (in this case). Saying false things is (in this case).
You can't compare the two.
The purpose of PR isn't to tell the truth. PR people don't get fired for lying.
The purpose of PR is to make whomever is paying you look good. Sometimes, that involves telling the truth. Sometimes, that involves telling a highly cherrypicked, out-of-context subset of the truth. Sometimes, that involves torturing the truth beyond any recognition. Sometimes, it has nothing to do with the truth.
We don't happen to live in a just world.
Which isn't to say you are wrong that they should be fired, but it's kind of like saying whoever in the US government was involved in inciting in the Jan. 6 attack on the Capitol should have been fired.