Ah, true. I definitely misattributed this statement. For this I apologize.
> His comment argued it should all be able to handled in DirectWrite without using the alternative not that the alternative hadn't been thought of.
His statement was "it isn't worth it" and "we ready doing it via the framework we're using" to only state, a year later, [1] "We actually took the same approach Casey suggested" while insisting that "it doesn't help much".
If he'd heard about this approach before and seen it in, say, Alacritty, he has a very shitty way of showing it.