In many cases, that's probably true. It is certainly true that, in some situations, a sUAV pilot could responsibly see and avoid other aircraft without being able to see his/her own drone. For example, one could fly a Mavic a mile out over a lake three miles across. With clear sight lines, the pilot could see any manned aircraft approaching even though his/her drone would be too far away to be visible. S/he would still know where the drone is, just couldn't see it. Upon seeing or hearing a manned aircraft approach, s/he could quickly descend to, say, 10 feet above the water. One might argue, in fact, that it's more important to be able to see approaching manned aircraft than it is to see your own sUAV. We can't reliably avoid manned aircraft without knowing where they are and where they are headed, but we could avoid them in many cases without having eye contact with our sUAV.
BUT. That's not how the FAA sees it (at least, not yet). Why stick your finger in their eye? For bragging rights?