Who should make this call? L or C? (Video)

[Raymond]

Because this was a NCAA-M's try-out camp, the Lead should have had this call. Slot should have been a little slower (cadence) whistle, but he made the correct call for HS rules that were being utilized. The Trail has a body in between himself and the play, so I don't see him putting a whistle on this play.

In an NCAA game, that was clearly a block because of the RA. Hopefully this play was fully discussed among the crew and with the observers.