Security is now generally in the first place, the higher the security of the project, the more chances to earn good relations with investors, because everyone wants a quality product

Everyone wants exchanges to be both fast and secure. But such a compromise is difficult to achieve. People just do not understand how everything works and therefore often require the impossible.
You're right. Therefore, developers need to listen to the opinions of users, but precisely follow the plans indicated in the white paper and roadmap. as users in most do not know what exactly they want.