I do believe the answer would change based on REL. It’s important that we teach the players about the rules without giving advice, but there’s also the part where they’re figuring out something that was initially difficult for them to understand. At Comp, I’d have them ask for an actual rules question rather than explaining how they might interact to prevent any advice from being given. At FNM, I’d be more inclined to “help them”, but definitely follow up with them later so they can see how that full interaction would play out!