The fact Kylie and Kendall were able to make it, only proves their initial success was not a fluke or ephemeral. All of them have been able to succeed outside of Kim and in projects that don't directly involve her.
There is no more milk left to fill the well for 1989. There is absolutely no reason they need to try pushing a 7th single at this point, especially considering how terribly the prior one did with a Grammy's performance and NYE music video debut.
Even the tour is over. Let the poor bitch reserve her narcissistic ramblings alone.
Hilariously enough, the true narcissist may even be completely oblivious to the fact of his disorder, which may lead him to ascribe these toxic qualities to the very same people they have victimized in a cowardly attempt to cast them in a negative light and make them out to be the bad guy.