I remember that another comical argument was performance. Supposedly, having extensions run in the background all the time is bad. So it's better to constantly, completely re-initialize them whenever an event wakes them up.
>Keep in mind that uBO's own JavaScript-based network filtering engine has been measured to be faster than a well-known Rust-based filtering engine (though the measured difference back then was low single-digit µs, not something that will ever be perceivable by a end user).
