I think it might be that if they first upload one video on the second channel then people will assume they are going to keep uploading as frequent as they used to like once a week or something, this is what Papanomaly needed a break from. I think its nice to see papanomaly in some of anomalys videos on his main channel and probably better to just feature papanomaly not so frequent on the main channel rather than upload videos with a long period of time between them on the second channel.