It does matter, because it represents the difference between two different scenarios that don't have the same chance of occurring:
1. The FBI/CIA hacked Twitter and leaked their database in retaliation for the "Twitter files"
2. The FBI/CIA hacked Twitter (or someone else did and they obtained the data) back in early 2022 (for an unknown reason), and are now leaking the data in retaliation for the "Twitter files"
It’s moot anyway, since they can always filter their stolen databases by potential methods of exfiltration, so the dump looks like it only used a certain vulnerability.
All we know for sure is that someone is attacking Twitter via blackmail via hacking just after Twitter released bad PR for some of the worlds most powerful hacking organisations.
All the skeptic comments in this thread seem to worry about the veracity of the claims, but that’s irrelevant to the question of would FBI/CIA retaliate.
1. The FBI/CIA hacked Twitter and leaked their database in retaliation for the "Twitter files"
2. The FBI/CIA hacked Twitter (or someone else did and they obtained the data) back in early 2022 (for an unknown reason), and are now leaking the data in retaliation for the "Twitter files"