SN should work better without JS, such as dark mode without JS. If should be possible to log in via LN without JS
JS is an attack on privacy and a security hole that has been exploited thousands of times. It is the primary way for surveilance and fingerprint. There are several methods to fingerprint a user through JS: canvas fingerprint, precision of math functions, webgl, web sockets for real time tracking, screen size, default system fonts, local date format, detection of the number of cores via js threads, etc.
JS is also the programming language of soydevs that think coding in C, C++, or even Java, is somewhat hard. It is the opposite of the vibe of cyberpunks with solids roots and a deep understanding of computer systems, low-level interfaces, networks, cryptography.