Confessed cable-crosser here too.I cross the cables that way on my Hardrock. I've done it that way for years. So far, the only effect is that the routing is a little cleaner around my head tube.
One of my coworkers once said, "If the experts can't agree on something, it's probably not that important." Not that we're all experts here, but there's a fair amount of accumulated knowledge and experience on the forum.