Well, the stick does matter. A lot. It's probably the easiest way to reduce volume.Nope. Sorry, I really don't think the wood type of a stick matters. You could give me willow branches and I could play loud or soft. Same goes for the 7A vs. 5B. The shape of the sound might be different, but you should be able to play just as loud with 7A's or just as quiet with 5B's its totally up to you to control the sticks movement.
That said, I do use 5B's outdoors for bigger venues, and 7A's for indoor stuff, but if I broke a stick or couldn't find a matching set, I could use either. We shouldn't have to rely on equipment to make up for our technique. Its a convenience to be able to choose what we play, but the player has more bearing over the sound than anything.
But playing well isn't easy. It requires practice. Drum sticks are not like golf clubs, different sticks for different situations. Brushes were not invented so a drummer could play more quietly.Well, the stick does matter. A lot. It's probably the easiest way to reduce volume.