It was a total bungle from the infringers end. They were stupid and ignorant of copyright law, tried to get heavy with lawyers, and tried to lie their way out of it. Wrong, wrong and wrong. It could so easily have been avoided in the first place, or sorted with an apology and a modest payment, but it cost them $60k of which the Northrup's received only a tiny fraction.
I think the lawyers should bear a big responsibility for the way it was handled and the huge cost to their client. They will have been fully aware that it was a slam-dunk case but pressed on to court knowing they'd get paid regardless. That's the real take-away for me - don't get legal, it's an unbelievable load of hassle and grief, the costs ramp up quickly and dramatically, and international copyright law can be a bit of a grey area these days.