Because the Quest 3 is another product, this is the pro version. The consumer version will get released later I guess, and probably with a price closer to the current Quest 2.
If there even is another consumer version. It sounds like Pro is Facebook's ultimate objective for monetizing this, and Quest 1/2 was just a beta test for them to perfect their tech.
It's the other way around - Quest Pro is the one testing new tech (mixed reality, face tracking, foveated rendering, self-tracking controllers). I imagine they're going to hone these features over the next couple of years and include them in the consumer models once there is better economics/proven product market fit.
This isn't a Quest 3 because it's aimed at a different audience. This isn't for gaming and entertainment, it's for productivity. Look at the list of software they are highlighting. It's design and business stuff. When they say "Pro" that's actually an accurate modified. Unlike the "iPad Pro" which is just a more expensive iPad.
