No, it’s a valid question, and one that I’m sure will get some answers in the coming days and weeks as the discussion on adding this requirement continues, but in some sense, it’s beside the point.
The cost of supporting this old hardware for businesses or hobbyists isn’t free. The parties that feel strongly that new software continue to be released supporting a particular platform have options here, ranging from getting support for those architectures in LLVM and Rust, pushing GCC frontends for rust forward, maintaining their own fork of apt, etc.