Who can know how appropriate or not the remedy was when the evidence is hidden?
For full disclosure: I'm neither a google employee nor a US citizen.
The public record argument is fine; it's just a different argument than the extrajudicial punishment advocated by the original post.
Suppose the government charges you with murder, searches your house, and finds your sex toy collection. At trial they present some elaborate thesis about how you used a sex toy to kill someone, but do not convince the jury, so you're found not guilty. The public has a legitimate interest in judging that the trial was handled with integrity and that the correct verdict was reached. They do not have a legitimate interest in judging you based on whatever private information presented at trial might in some way embarrass you (eg, photos of your sex toy collection). On balance, it could be that the public-record interest does in fact justify making public the evidence of the sex toys, but you have to justify it on those terms. The transparency is not itself intended to be punitive.
There is a definite public interest in understanding how Google conducts itself given the reach and impact it has.
There is no way for the public to have confidence in the trial process if it is conducted in secret, and given the outcome every reason to question the process.
I'm surprised anybody objective would defend this.