mamba
Legend
that is certainly better in that it is not piecemeal and is iterative.I think Paizo is doing it right with a return to their "early access" playtest model for Starfinder 2: here's an alpha version of the game. Play it and tell us what you think while we work on the final release.
The way WotC does it accomplishes two things imo
1) prevent them from accidentally creating another 4e, where the expectations of the target audience were so far from what they built, without them ever realizing it. This is an intended outcome of the playtest.
2) prevent WotC from making more than slight tweaks to 5e. This is the unintended consequence that results from their methodology