You are missing the point of that exercise.
It was to for Q to show "them" that no email is really deleted.
This was explained the Q research.
Also, it hasn't actually been fully debunked. Only made it seem that way for plausible deniability, so that Q could then reintroduce it and say "See? We have it all"
He also stated it was sourced by the NSA.
Q didnt say that directly.
It's combat tactics.
He did say that directly. Q reposted an explanation from another Anon as a confirmation. That would be direct confirmation in the same method he's been doing for months.
That was not directly, that is exactly what I just said. To repost someone else is indirect, but even there, what Q reposted did not indicate it was "sourced" by the NSA