I agree that it wouldn't have defeated 'Bootylicious' but she wouldn't have descended into parody and arguably the whole meltdown would have been less of a major issue.
Glitter was going to flop anyway but the soundtrack and singles could have been hits - something that another M.C. managed for decades (shit /box office bombs but with successful accompanying music

). But let's not go into ifs and buts.
The bottom line is it would be like if Madonna had prepared 'Hung Up' for release and suddenly Britney Spears released something with the 'Gimme! Gimme!' sample.
In conclusion, DEATH* TO J-LO
(* of course this is only meant in jest and we wish everyone love and light even haters. We do not pit Strong Independent Females against each other and J-Lo has her thing and that's that.)