Patrick Volkerding said in 2012 that Slackware may be forced to use Systemd in the future. Granted, we're 5 years on from that and 14.2 doesn't include it, but that doesn't mean it won't happen.
If Systemd solved a problem and was the obvious better choice compared to Sysvinit then there'd be no issue with adoption. But Systemd doesn't solve any problems, not to any great extent or benefit.
Biting the hand that feeds IT
