Yeah, I'll wait and see. I think a key thing to remember is these kids are still in school. So they'll skip a few classes to come to play NHL games. Whether they would for AHL games is a different story.
On the AHL site, they don't distinguish between NCAA or CHL, just saying NHL-drafted prospects can be signed and play in the AHL playoffs, independent of the clear-day roster. However, historically I didn't find it easy to find cases of NCAA players doing this. (In 5 minutes of looking anyway). But you have to keep in mind those younger NCAA guys like Wood are still in school, still taking classes, still need to write their exams. Go get the NHL paycheck and burn off your ELC year, sure, that's an important step for your future. Past that...