Perl 6 is really a different language from Perl 5, so I think the new name is what should have happened from the beginning. But I basically agree with you that

Perl 6 is really a different language from Perl 5, so I think the new name is what should have happened from the beginning. But I basically agree with you that using the name "Perl 6" for Raku led to most people abandoning Perl 5. Hopefully people will think more carefully about transition in the future. But too many technologists ignore history, so I don't have high hopes.