Not sure whether the author is very Afrikaans, doesn't understand financial language or just straight up intentionally misreading it to cause drama.

Eg

Authors version

The Regulations make it clear that, in general, it is only the overall inflow or outflow on a single day, the date of valuation, that is relevant.

The actual text:

cash inflows and outflows, or other benefits and costs that the subject property generates for the specific owner in perpetuity

That is bog standard wording for npv you'd find in any text book and certainly not a 'perversion of the usual meaning' - including the on date of valuation part.

Didnt bother to read the rest. Presumably it's of similar quality