Not even a little. It was bad comms.
Rams actually had 3 players covering 2. Nuk has Ramsey and a safety double teaming him and Arnold as single coverage vs slot CB David Long.
As you can see well past Isabella's dance act Nuk and Arnold are both well covered.
But when they cross Long thinks he's passing him off to the safety (I think Johnson) whereas the safety thinks he has to stick with Nuk. And all 3 end up with Nuk and Arnold runs free.
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That's not to say Isabella achieved nothing. It confused the heck out of Darious Williams and he stays in the flat to cover Isabella while Kirk runs free. That's Kirk at the bottom wide open and possibly the intended target of the play until Arnold gets wide open downfield.