LD_PRELOAD, which is basically the same thing, has been with us since forever. Unix security model was never meant to protect user processes between themselves

LD_PRELOAD, which is basically the same thing, has been with us since forever. Unix security model was never meant to protect user processes between themselves, it only meant to protect system from user apps, which is a bad model these days, where basically every device has a single user, and the real threat is user apps hacking and stealing each others data.