@jacobt13: You're confusing two different things (and apparently missed the two notes about FW 5.4...).
KF8 font embedding works no matter what, and the hack doesn't affect that at all (barring a change in FreeType lib used). But in effect is has *nothing* to do with this hack

.
You will *NOT* see any new entries in the Aa menu on FW 5.4, so, no surprises there.
So, next obvious question: I'm gonna need to know what you meant by that 'etc.', because I'm guessing you missed/misunderstood something

.