Yes, I'd notice that Isaiah Haastrup's case attracted comparatively little attention. I suspect that race is part of it, and also class and the parents' difference use of the media. Also, I think Isaiah's parents were perhaps more overtly religious in their public statements? The general public these days is perhaps more likely to respond to arguments that the child is a fighter who deserves a chance, than arguments that overtly mention God's will. Ironically, I've seen comments on the DM and social media to the effect that "they wouldn't be treating Alfie like this if he was black", from idiots who obviously didn't even notice Isaiah's case earlier in the year.
In any case, my heart goes out to all these children and their families. From the experience of my extended family, I know that this isn't something that families ever get over. I hope the families get the support and counselling they need.