Googs just gave them $400m which means they have soooo much more than $400m. FF has to pay all of its budget with that, so hiring lawyers to take on Googs with that same bucket of money will never work. Googs will continue to give Moz $400m, but then turn right around and spend $401m on their lawyers to fight off whatever Moz can afford.
You can have the best product and still receive little traction because the competitor is a megaCorp with huge marketing budgets and able use its size to make it harder for the little guy with the better product to compete. At that point, legal recourse tends to be the only action left. Googs isn't afraid of this, because they know Moz can't compete financially.
