I too used to work for several BIG Euro truck and Bus makers. Warranty adjudication was a task I undertook quite frequently as "Technical".
So I will add some inescapable facts for you to ruminate over.
You, like any anyone in NA purchased the vehicles from a dealer and signed the documentation which contained clauses ,terms and conditions &, several paragraphs will be devoted to potential warranty claims . By signing that comprehensive document YOU AGREED TO BE BOUND by the terms and conditions. So too did the manufacturer, and the dealer who also counter signed the SAME document in the F& I office. This is a commercial legally biding document with two parties joined together on TERMS and CONDITIONS.
Emotional reactions to a failure issue I am sure are not included in that document.
Now I see Lemon Laws discussed in this thread diatribe.
Hanging like a sword of Damocles is this law, but it has to meet certain litmus tests, & so far as i see it every exculpatory clause is open to the dealer & manufacturer by installing a no quibble warranty support posture living up to the yes! Terms and Conditions.
As for installing a new engine who bloody well cares quite frankly!
At one stage during its assembly it didn't have an engine in it either ,so what's the difference? You and your emotional posture. Get over it.
Again the van will be no different than it was before the 'incident and i can assure you that engine/powerpack comes out in a few hours by removing grill, cooling pack & radiator support arr". Its a 12 hours job tops.
As for $65K. I have customers who have spent $350,000 for a truck and the engine has promptly failed.
It happens everyday across the world, no a reason to get into a flat spin, whirled like emotional state over a piece of bent iron called a consumer durable.
Dennis