That's because the Sequels were low quality movies. That really has nothing to do with the greater conversation at work, which is the real reason Astro's example was bad. IT doesn't display the larger context at all.
Regardless, and this is to the rest of the thread, Greyhawk is an interesting setting IMO but as someone who doesn't have history in it, I'd be uninterested in seeing it reprinted without something new in it. 5E has its own cosmology, its own races, and I'd want all of those races reflected in Greyhawk; aasimar, tieflings, and yes, dragonborns. If your setting can't be updated to match the base standards of the vanilla game in 2024, then your setting best exists in its older state and has no business being remade into a 2024 book. But if you're willing to accept that your setting has to change a bit, then I think we could all embrace a pleasantly surprising Greyhawk update.