BS5.3: Why not make <hr> color match border colors, for consistency?

[mavelo-llc]

We address this with

hr {
    color: var(--bs-border-color);
    opacity: 1;
}

But I wonder why horizontal rules are not already styled like this by default 🤔

Default styles

hr {
    margin: 1rem 0;
    color: inherit;
    border: 0;
    border-top: var(--bs-border-width) solid;
    opacity: .25;
}