Don't know who the Riverhawks are but they sound mean. I don't see them on myhockeyrankings so not sure where they play.
My take on MFF is that there 04 tryout is more or less an invite to kids who could stand to play for that coach. The team is picked before they hit the ice.
I think the oilers is made up of independent kids who want to play more than just town tier 2 hockey. Haven't been to SONO ice house yet but it must be nicer than the old Crystal Ice Palace.
Surprised no Oilers kids brokered deals to join MFF. There are some pretty good players on the Oilers who could contribute on that MFF team. Instead MFF reached down into NY and NJ for their additions.
Perhaps the Oilers (a good team in their own right) are content with their team; an oddity in youth hockey.