Well, I asked someone in one of the guilds that has cleared hard mode and they said they focus the spheres down so fast it doesn't matter, so I'm guessing not a lot of people seeing the problem and reporting it and others might think this is the way its supposed to be. But we were getting protector spheres everything 13 seconds, which makes it impossible to do much else when you also have to fight three bosses and they all get beams on them constantly b/c so many spheres are popping up.
Not sure if it's a bug triggered by something we are or are not doing and they just don't see it, or they don't see it b/c they just kill the stuff fast enough.