That announced that it could be used as a second name, but provided no further guidance, so Perl 6 is still used by many thus its problems are still just as present. This proposal would be to actually consistently use Raku as the name of the language.
Wouldn't it have made more sense to hold off on the first announcement until there was consensus on a single new name, instead of having two or three inconsistent namesoperating simultaneously for a year? Neither of which might be the final one?
A lot of things would have made more sense in hindsight, but it's not where the community was at the time, and ultimately Larry said no to a straight rename. He is taking less of a role now so it can be revisited.