...TT designer that want to design a tonearm for at least take in count an arm board that match the tonearm build material resonances to avoid adding more. This designer knew perfectly the tonearm behavior about so he can help in better way with his tonearm design that with a different tonearms where he almost know nothing
Not true. Some (not all) always think, when a "Designer" does something, it is automatically prefect, well done and a lot of brain is inside. I think, this is a master mistake in audio today. Every new "Design" gets its merits, some don't hesitate, to name it a "great" design when a piece of wood for 10K is offered, but each his own...
Till today there is no perfect solution to " one for all "Not true. But again, each his own, when someone has no technical knowledge or fixes his view on the wrong technical issues, well, then nothing will be ever done right.
Sometimes electronics can show the differences, sometimes not, sometimes the listener can understand what he hears, sometimes not...it is not a religion, but of course are some design existing, which have some better solutions.