Yup, this ACTUALLY happened, with hilarious results. Both teams even followed all of the ARAM rules too!
Unfortunately, Curse and Dignitas will not get prize money, placement, and Circuit Points for "collusion", aka both teams agreeing to split up the pot money (and were discussing it somewhat openly too. End result was a lot of people knew what was going to happen before this happened)
That $40K in prize money for the 1st and 2nd place teams will now be split to the 3rd, 4th, 5th, and 6th place teams
tl;dr - being discreet was too OP for Curse and Dignitas, and they got caught out of position and aced by tourney organizers.