> It has exactly zero technical advantages over the original. It has not even the plan to add any improvements over the original… The plan is just to merge upstream.

Technical advantage is not the goal. Here is the actual reason they forked: https://crablang.org/

    The Crab (or “CrabLang”) community fork was created as a lighthearted yet measured response to the growing concerns within the community about the influence of corporations and the restrictive trademark policy proposed by the foundation