New Zealand and Chinese officials had been patiently working on that issue for several weeks to ensure that when the disclosure was finally made (China like others within the dairy industry in New Zealand was working to a March 17 date) it was handled smoothly with little disruption to consumer confidence and trade.
The 1080 announcement on March 10 clearly overshadowed the following day's Herald story.
But the timing of the official comment by China's foreign ministry spokesman Hong Lei is instructive. The Chinese Ministry of Foreign Affairs releases a daily transcript of key points from the spokesman's press conference. It's notable that the question dealing with New Zealand was not raised at the press conference on March 11 - but afterwards.
China's foreign ministry does take questions after the official press conference. But the ministry at times ensures it gets a point made even when a journalist has not directly raised an issue.
The March 11 transcript reported that "China's comment" was sought on the latest Snowden documents that show our GCSB collects data on communications from about 20 nations, including China, Japan, North Korea and the South Pacific island countries, and passes it to the US, UK, Canada, Australia and others.
Said Hong: "China is concerned about relevant report.
"We attach great importance to the cyber security issue. We will firmly safeguard our security interests and continue to guarantee our cyber and information security with concrete measures.
"At present, the cyber space is riddled with chaos and uncertainty. China proposes to settle disputes through dialogue and formulate codes to regulate cyber space behaviours that are acceptable to all sides."
Chinese diplomats - like their counterparts here - would not have been seriously surprised by the Snowden revelations, which have been drip-fed by Hager and Gallagher.
China has been repeatedly accused of cyber-spying itself for intelligence and commercial ends. It's also been abundantly obvious since former US Secretary of State Hillary Clinton lifted the lid in 2009 on the news that the United States had ramped and "fully restored" intelligence sharing co-operation with New Zealand that the two countries' collaboration had moved up a gear and that China was under scrutiny.
China has now said it wants fair governance of the internet and "the building of confidence measures in the cyber space based on the principles of respecting the sovereignty of other countries ... and peacefully resolving the disputes".
If Key runs true to form he will continue to flannel when pressed by journalists for comment on this issue.
But China has put the word out.