Unless it was Tien's Kikoho. I think some beams should knock people on their ass (when they hit directly), like the kamehameha and the final flash... maybe even the transformed generic attacks. It doesn't make sense for somebody to fly through a kamehameha and smack you at almost any PL. It wont change the beam/melee balance too much. If anything it'll make people more paranoid about charging straight ahead at people. You can always miss somebody coming at you too.