OWL Skin Refunds

I understand the desire to change the colours for the OWL teams, but why do we get screwed after having purchased skins with actual money. Anyone who actually bought Shock, Mayhem and Valiant skins should be entitled to the new skins or a refund. I have $80 worth of skins just from these three teams and now they are pointless.
If a card in Hearthstone gets nerfed, we are entitled to a full cost refund worth of in-game currency. How is this any different?