What the parent comment is saying is that he made a comment that in practice didn't actually amount to anything.

But he sent out emails to employees saying they just had to email HR and they would be released from their NDAs. I don't understand what more you want?

I'd like to see some proof it was actually followed up on and people were released from NDA's.

I mean the company is 20,000+ people and there hasn't been one story of anyone saying they were not allowed to get out of their NDA, nor any stories about being fired or treated poorly after being released. So either, no one took him up on the offer (highly unlikely given 20k people), or there was no issues when it happened.

It's also worth noting that it doesn't sound like what happens after you get released from the NDA was formalized. Given Bloomberg's reputation it's not unreasonable to think that asking for this puts a target on your back for later retaliation.