Very rare I disagree with your stance on electrics but I think your enterpretation based on if it doesn't say you can't do something in the regs then you can do it.
It doesn't say you shouldn't wire a banana form a junction box to a tomatoe in a ring final, dies that mean you can.
433.1 says what you can do.
Thank you for those kind words.
I think my hard line stance makes it come across that way, but that's not really what I'm getting at.
In the course of this thread, I've read 433.1 several times and it makes no mention of junction boxes. It's focus is on cable loadings and ensuring that they are adequately protected against overload through the correct selection of cable size and appropriate OCPD.
Specifically 433.1.204 states the rules for cable sizing for ring finals.
Since these two spurs are designed correctly, i.e. the correct size cable and only one double socket outlet on the end of each, the spurs themselves comply. The ring final itself complies because it is wired in an appropriate cable and protected by an appropriate OCPD.
So the three elements here comply in their own right. Providing the junction box used can handle the expected load (whether or not this is accessible is another discussion), there is no reason that I can see how this arrangement can be deemed to be a non-compliance.
The appendix 15 argument if taken to it's logical conclusion means you can never have a single socket outlet on a ring final, or take a spur from the origin, or have more than two double socket outlets after a fused spur, or have a grid switch system... why? Because they aren't shown on the diagram. The diagram provide guidance on how to comply, it's not a definitive list of what you can do (as it states, the diagram shows options).
And part of why I'm taking a somewhat hard line stance is because I'd like to see more substantiated 'it's against regs'. If I make statements to that effect I try and provide appropriate regulation numbers as it may help someone understand more. And in this case, no body has been able to explain to me how this arrangement doesn't comply without resorting to the appendix 15 argument.