Foundation formwork made of Poroton bricks

Everyone has probably understood that it does not correspond to the state of the art. What impact does this have in practice?

I am a layperson, so it would be nice if it could be explained with simply formulated examples.

Wash my fur, but don’t get me wet?

The complex matter of lightning and surge protection, which ultimately concerns grounding systems, overwhelms even some electrical specialists, and its necessity—just like that of protective devices—is disputed with the attitude "It worked fine without it before".

If anyone can package the desired simple info into ten lines, I sincerely applaud them without envy. A user described as a rambling blatherer is hardly suitable for the task and better leaves the explanation to experts with more comprehensible pedagogy and didactics.

But if no such authority appears, you have to educate yourself on the relevant chapters in freely downloadable secondary literature such as e.g.

[*]DEHN Lightning Planner,
[*]VdB Lightning Protection Installation Manual,
[*]PDFs from Elektro+, or
[*]free articles in electrical trade magazines de, ep, Voltimum, etc.

If basic concepts, especially earth resistance, equipotential bonding, or voltage gradient, are understood, the question can also be answered independently.

Okay, so quite complicated, no one understands it, no one really cares, and it also has no major practical impact - a storm in a teacup,...

One: "sorry, I don't have any practical examples of problems" would have been enough for me. Every real professional I know can explain complicated things simply. Be it law, physics, or, or. That much about that

Who is stopping you from asking one of these experts or requesting an answer in the forum?

I have it from you. But more than listing what you have to read, nothing came of it. A pity, because exactly those answers would have the greatest practical relevance.

The builders are not interested in bare theory. Everyone here knows now: often there is botched work.
What no one knows, precisely because you don’t convey the information, is what consequences this can have for me in practice.

If it has no practical disadvantages, this discussion is purely academic.

So once again, the sincerely meant question: What practical disadvantages can non-compliant execution have?
Please explain it to me as a layman as simply as possible, preferably with examples.

No means no, I leave the desired "room service" to other readers.

If they are keen on niceties like rambling, the answer won't take long. If I'm wrong, there are other ways to get information.