I don't think it's the quantity, I think it's the quality of shot. I'm fine with them jacking 30 threes a game, as long as they're contested.
I think the biggest key is not doubling Howard. Perk does a heck of a job on him, and BBD and Wallace have done very nice jobs on him too.
Guard him 1 on 1, stay home on all the three point shooters, and Orlando will fall apart. Howard is good offensively, but he's not that polished. It's unlikely he'll win 4 games for them by himself, particularly with Perk on him.