Sorry, but to me that's something blown grossly out of proportion. Look at the composition; the children are exactly centred on the bench, the teacher is on the [image] left side at the back, everyone's hands are crossed; this has been the bog-standard forumula for elementary school class photos since there have been elementary school class photos. Could the photographer have done a better job at composing and "included" Miles better? Certainly. Should he have done that? Absolutely! To say, "the photo is discrimination and a reflection of a society that still attaches stigma to disability. “Kids can be cruel but this comes from adults, which is even worse,” she said. “Adults should know better.” to me seems almost slanderous.
This may well have been the first time the photographer was faced with a situation such as this, and given that it`s Life Touch, he may not have been an experienced photographer, just trained by them in the `Light one here, light two there, snap, snap, next please`routine. Coming across a situation that may not have been mentioned in the training, he didn`t know what to do, and did what he thought best at the time.