I was just being snarky, trying to imagine the stupid ass shit that Trump and Giuliani are floating while the lawyers are staring at them incredulously.
That said, your analysis of the situation seems really solid to me. All the public facts of this arrest - caught at the airport with one-way tickets, funneling foreign money into a pro-Trump PAC, Russian-sounding names no less - all ends up making this look REALLY bad in the eyes of all but the most partisan voter.