The Jacob person you're quoting was demanding money to not expose such information in an 'extortionist' style attempt... and he did take the money and he did keep quiet. He wasn't some good-guy whistleblower, he took advantage of his inside knowledge after he was fired for personal gain. While then rejoining Uber after the fact and continuing to work there.

In that letter, likely written by his attorney who also got $3 million, had a clear incentive to twist the narrative of using an app like Wickr to make it seem as malicious and damaging as possible.

Uber also went to federal prosecutors with his letter to preempt him from using it for further personal gain. They didn't try to hide from it.

I'm not saying it wasn't used for malicious purposes but I'd take those allegations in the letter with a grain of salt.