'cause it's been shown time and again that once a week training is a bunch of bullshit. Yes, it can work, but it's not optimal. A prime factor in hypertrophy is frequency, and this is demonstrated through a lot of programs that focus on training the muscle groups more than once a week. Most people who train each muscle once a week with such higher volume, rather than training it more often while distributing the volume end up looking the same day in, day out, crawling along with their gains (unless they're a newbie, in which case anything will work), or abusing anabolics (which cause growth no matter what you do, basically).
As for a picture, I don't have one. Whether I can match him or not doesn't mean anything. First off, his chest isn't impressive, and that's part of his routine I was commenting on. Second, just 'cause I don't look like him doesn't take away from my training knowledge or comprehension of the principles of hypertrophy.
Also, it sounds like you're defending him. I didn't ask you to trust me. I asked him. It's his call. Should he choose to stick with such high volume, a shitty selection of exercises, and lowered frequency of training, then so be it. However, it was food for thought for him, not you, and should he choose to heed my advice, then he might find himself progressing quicker, which is what most of us here want.