They were clearly told what can be done (like: https://www.suerf.org/docx/f_8ec57b4b3e0f08f05b4793beef0bcd62_69851_suerf.pdf https://www.suerf.org/docx/f_8ec57b

They were clearly told what can be done (like: https://www.suerf.org/docx/f_8ec57b4b3e0f08f05b4793beef0bcd62_69851_suerf.pdf https://www.suerf.org/docx/f_8ec57b4b3e0f08f05b4793beef0bcd6...) and what cannot be done (like: https://taler.net/papers/euro-bearer-online-2021.pdf https://taler.net/papers/euro-bearer-online-2021.pdf) but for politics the technological reality doesn't matter so much, as the decision makers don't care to actually understand the technology.