Certainly, Private Manning faced punishment.
In providing more than 700,000 government files to WikiLeaks — extensive excerpts of which were published in The New York Times and other publications — he broke the law and breached his responsibility as a military intelligence analyst to protect those files. It was by far the biggest leak of classified documents in U.S. history, and thus it is not surprising that the punishment would be the longest ever on record for leaking such information.
This is a New York Times editorial. Tom