That's the ultimate cop-out. There is a way you can expose coordination with internal teams and colleagues without

"I've reached out to a colleague who has provided me with some additional context" or "this work requires some additional input from another team - I'm working to establish this and will get back to you with more details"

Neither of the above examples provide any more context on internal teammates or their organizations. However they do require additional work and a culture of customer support (which Larry Page was infamously against for years).

That’s an explanation, not a cop out. It’s saying it’s a problem with management’s incentives and presumably not easily corrected before they have a good CEO.