I'm pretty much against that "replays need booms to be good" thing imo. I consider style to be more important in replays than booms. But I do try to have booms and at the same time not forget about style which is a bit hard since booms usually require speed and force even though aim is more important than those two together it's still hard to do. All in all, booms aren't bad but you don't need booms for a good replay.