Yes the fact they'd rather cancel it than make it for an older (say 16+) age group is rather disturbing.
Almost as if talking about sex with small children was the MAIN POINT.
I've done several safeguarding courses in the past year for my job and volunteer roles and every single one said that child sexual abuse could include inappropriate discussion of sexual practices with young children (it absolutely doesn't have to be touching) - this means inappropriate adults (e.g. random stranger actors) discussing inappropriate things (like porn, which the show says it will discuss, and masturbating animals - on their website) and at inappropriate ages. In either of my roles if I came across something like this happening to a child I should make a safeguarding referral.
They've made absolutely no attempt other than word salad to explain why it's in any way appropriate for this to be aimed at primary age children.
If they knew any children, at all, they'd realise that typically children don't get phones until secondary school and do not have unsupervised internet access even then. Again, an example of something that could trigger a safeguarding referral is when young children have accessed inappropriate movies / online content (like masturbating animals) and talk about it with their teacher / other adult in position of responsibility.
Any teacher who had a child talking about the stuff in this show in their class (particularly a 5 year old - in RECEPTION FFS) should raise a safeguarding concern. It's a red flag to have a very small child talking about porn, masturbation etc.
Also, every single course says safeguarding is FOR EVERYONE. And yet, we have the Guardian, clearly a safeguarding free zone, criticising mothers who dare to try and protect their children.
Shame on you Guardian - in the interests of balance how about getting a real safeguarding expert in to analyse this show?