For anyone who purchased FSD anytime in the last 14 months, that's not correct.
From March 2019 onward, FSD has been a package offering 7 specific features. ALL of which were ONLY available to FSD buyers (again, from that date onward- people who bought things before 3/19 had different options)- and 5 of the 7 already existed and were immediately available to those FSD buyers.
Now a 6th has been released (in the US- coming elsewhere later)- leaving only 1 of the original 7 promised features not yet released for anybody who bough FSD in the last ~14 months.
Now folks who bought PRIOR to 3/19? They're still owed... a lot
But FSD pre 3/19 and post 3/19 really are different products... (just as EAP available pre-3/19, and basic AP available 3/19 to present, are very different)