It depends on what you do! The reason I use this as my go-to example is that I came across the incorrect use of reinterpret_cast for this exact purpose in a previous job (which was firmware-adjacent).

edit: are you also expressing disagreement with the claim that few C++ programs are correct (and the implied claim that this is because many people's first-guess approaches are actually incorrect), or just saying that you think this is a bad example of the language being complex or misleading?