I genuinely thought I had written so badly my meaning was lost, and you were poking fun at me based on a misunderstanding.
I'm not taking issue with anything you say about what HE can be like. Most families, regardless of educational choices, are active, positive and visible. Not reclusive abusers.
There is no reason to expect any impact on your family, other than the time it takes to comply with the putative register that the Welsh government has been considering over the last couple of years or so since the serious case review.
If they were trying to impose something onerous, or something that changed your choices about education, that would be quite a different matter to what has leaked so far which is along the lines of a basic register that your child exists and occasional consideration of whether they are ok.
That the existing systems sometimes fail, by missing what is going on, or a case being bungled once a problem has been identified, is not a reason to stop looking at how to make systems work better and examining how every child could be reached.
'The little boy who died' had a name, Dylan Seabridge.
The serious case review has yet to be published, but it seems when concerns were eventually raised, and education officials visited the Seabridges, but had no power to see Dylan. The parents, incidentally, dispute the cause of death according to at least one account. So it is quite possible there was more going on, including things which would be spotted in a visible child, or one who had been produced at that point. We don't know yet - so that speculation might be wrong, and I expect we'll know more when the review is published.
Having your DC be registered and seen might not make any difference to them, because you are not abusive parents. Just like the time school staff spend being trained in child protection doesn't make any difference to most families there because they are not abusing their children. But it's done, and the opportunity cost is accepted, because of those it does protect. Those ones don't make the headlines.