Whenever I see this kind of persistence, it underscores how important path dependency is when trying to understand how things got to be the way they are. From legacy software to political systems, when there's cruft or weird behavior there's almost always some environmental factor that shaped the decision to build it that way, even (especially) if the people who made the decision weren't conscious of why.
Chesterton's fence. I admit that when I was younger I was much more eager to just tear it all down and start anew...but with experience I have come to see things are never quite so easy. Things are the way they are for a reason, and it is important to know what those reasons are before attempting to modify the things.
"of the two available interpretations of the principle, neither are plausible: weak formulations (which hold that precaution in the face of uncertain harms is permissible) are trivial, while strong formulations (which hold that precaution in the face of uncertain harms is required) are incoherent." [0]
[0] https://en.wikipedia.org/wiki/Precautionary_principle#The_pr...