It's a fair point and I partially agree with you. The reason why the images are this way is on one side because that's what the AI comes up with, which is clearly biased (but it took me long enough just to get to a photorealistic look). And on the other side because I think a more aspirational look will push you more than a strictly realistic one. If I see the muscled guy bouldering I think how I could become, and it just looks "easier". While if I see a regular person who can barely hold onto the wall I just think of how bad the experience might be and could end up not even considering it.