That's exactly what they did, but it backfired because Orange stacked up so much spelldamage through everything that he absorbed. Hyoga was on like 300 mana or so and slowed at the end, maybe even a PoM wouldn't have saved Kwana.
At the end of the day it nearly all came down to the spellsteal
spz: He won because he killed the mage and then he just waited till the timer elapsed (there is a certain amount of time which each arena is(20 min I recall) and after that time elapsed the dmg done is calculated and the team with most dmg done wins). In this case obviously HON's team had the most dmg done after orangemarmalade's ownage :)
At the end of the day it nearly all came down to the spellsteal