Ideally that'd be great, but to hit at least one of the spots I'd need to put a powerhead on the front viewing glass pointing towards the back at an angle. And when I stir it up/blow it off the rock, it does swirl up and around the tank. I have 2 opposing gyres and 4 additional pumps currently, all running on max. But this almost dino-like detritus film comes back within hours of blowing it off. It almost looks like it congeals, or maybe makes a web-like mass partially anchored to the rocks. When it blows around it seems to stick to itself like it knows it needs to be heavy enough to sink and not get sucked into the overflow.
I don't mind having to syphon every so often, but like the OP, having a detritus feeder would be very helpful in the fight.