Center Sneak

[Snake~eyes]

Okay I do youth football, I'm not a WH and I have to admit that some of the WHs I work with aren't very knowledgeable. I go to coach for pregame talk, says he has a trick play. They snap it then quarterback gives it right back to the center. PLEASE please please tell me that this is illegal. WH said it was legal as long as there is an exchange. He allowed for this play to happen. I'm saying that any interior linemen has to be 1yd behind LOS and face goaline. What's the call?