And the phrase "look at the ecosystem in its entirety" means "do nothing". IT people should know this better than anyone - waiting for the perfect solution with zero drawbacks mean never getting that solution at all.
Mozilla is (1) 100% dependent on Google for it's survival (2) competing with Google in the browser space, with unfair tactics by Google (3) Critical to the free Internet.
That places them in a tough position.
I suspect if they didn't have unfair competition from Chrome, they could have more marketshare, and ultimately, more revenue from Bing/DDG/etc. (perhaps at lower per-user prices).
This may be not the best comparison, but I think it is close enough. Mozilla spent decades to put themselves into a corner but voluntarily getting 100% dependent on a money coming from a shady entity, hoping that said shady entity would exist forever. Now regulator came to that entity and in the process all symbionts will suffer, and Mozilla the most because they are completely dependent. And now they ask to stop and think.
Ok, we are thinking - do what exactly? What does Mozilla seriously expect? Any action except for doing nothing will hurt them. Or do they expect that DoJ will conjure "free" hundreds of millions to compensate Google feed?
tl;dr Mozilla ask us to "think about consequences". Ok, we did. Now what?
A lot of intermediate approaches -- such as firewalling business units at Google -- would achieve similar effects.
I didn't read this as "do nothing." I read this as "think through consequences."
The court will decide (unless the issue is settled beforehand).