the school refers to ‘complex needs provision’ as if it is maybe a separate class who are generally taught separately.
So maybe it’s a bit like ‘do you want a photo of year 3 and 4 or just year 3’?
As a career-long teacher of severely learning disabled children, I would be infuriated if those kids had been photoshopped out. But I don't think that's what happened. I think it's highly likely that the scenario was as above.
In the other thread about this, it's mentioned that the company regularly takes photos of separate groups and merges them. So I imagine that they took one of the mainstream children, one of the children in the specialist provision, and one merged. Then the parents had the choice of photo.