sorry, but is this so unreasonable?
This is about SMBv1, an ancient protocol back from the days that the Internet was a kinder, gentler place. The only reasonable use case today is to put it on a tightly air-gapped network to talk to some legacy machines (say you have some Win95 boxes which must be kept alive to support some custom hardware).
It's like insisting that the security issues in Telnet get fixed. They *did* get fixed, and the result is called "ssh".