I'm a rev main, free player and got the skin from second pack. (Bought 1 from event shop and 1 with 100 coins that I had from previous season battle pass).
Played the event, pretty sure this might be a one time buy and get since it is a event but who knows Respawn and EA(mostly them) might get greedy and resell it
The fact that we have to gamble for one skin that we want rather than get it outright is shameful by EA. Glad you got lucky, although they should just gift Guapee any new Revenant skins that come out.