No it wasn't. They specifically tried to misrepresent what the project was, minimize the scope of their involvement with it, as well as Google's plans to expand it further.
From the article I linked, which is an interview with a Googler who helped lead the resistance-
Interviewee:
...
They also tried to downplay the scope and involvement of the project. But that rhetoric dissolved when we found out that leadership had been lying.
Interviewer:
What were they lying about?
Interviewee:
From the beginning, they told us that Project Maven was a small contract purely for non-offensive purposes. They said that we weren’t building anything custom. They said that this was a one-off project only worth $9 million, and that it wasn’t part of any further collaboration with the Pentagon.
Those all turned out to be lies. On April 12, DefenseOne published an article that landed like a bombshell in the company. Drawing on conversations with Pentagon officials, it revealed that Project Maven was actually a pilot project for future collaborations between Google and the military. In particular, Project Maven was part of Google’s push to win the Joint Enterprise Defense Infrastructure (JEDI) contract.
JEDI is the military’s next-generation cloud that will network American forces all over the world and integrate them with AI. It’s basically Skynet. And all the big cloud providers want to win the contract because it’s worth $10 billion.
When we found out that Project Maven was an audition for JEDI, people started becoming extremely concerned. And as the media attention to the story increased, we learned a lot more. For instance, Diane Greene had told us that the Project Maven contract was only for $9 million, but internally they expected it to increase to $250 million per year. And they weren’t just giving the Pentagon access to open-source software — they were going to build a massive surveillance system that gave military analysts real-time information on people, vehicles, and buildings in a Google Earth–style interface.
Exposing all of those lies damaged leadership on this issue just as much as anything else that we did. That loss of trust really hurt them.