I think PF2 works even better for more powerful ancestries (in some situations), for different reasons than Vali Nepjarson described. Take the drow noble example. You start as a drow, maybe taking a requisite heritage if necessary. Take some drow magic feats (just like the feat tree in ARG), and eventually take the Drow Noble feat (level 7 feat perhaps?). In this case, the "more powerful race" is a higher level version of the base race, and a non-noble would simply take different feats.
Take monsters that are simply stronger, say a dragon (as an excessive example). You might start as a hatchling, with very few abilities, and gain more as you level up and select them as racial feats. Level 4 as a prerequisite for flight, level 7 for breath weapon, a size up option at 11, and a frightful presence like ability at 14 (this is an extreme example and not balanced well, but you get the idea). This doesn't work quite as well as the example above, but you can swing it.
Pathfinder 2 facilitates strong races in the sense that strong directly equates to the level of the monster (a noble does have better access to tutors and trainers after all), it only falls slightly short when that progress is by maturity (such as driders, dragons, trolls, etc).
Finally, all hail our kobold overlords. That is all.