There are a few ways it improves the game of Magic although they do not really relate to the reduction of random effects
Scute Swarm can take over a game all on its lonesome, especially alongside Skullclamp
Not sure its worth it with creatures, and Im not sure Squandered Resources is the best thing to be doing outside of janky combos unless you can get lands out of the graveyard
Another strategy that mono-white loves to employ is life gain, and Voice of the Blessed is all about life gain
I dont know if were going to see channel reprinted again as it is, but a similar and flexible mechanic is going to follow it for sure
Hour of Devastation wasnt even fully released, and it would mostly be impacting Standard, and Id settled on Burn or Lantern for the event, so talking about other decks didnt seem helpful