Has Riot changed their stance on the importance of high Ult cooldowns?

Ultimate cooldowns reduced since Preseason: Ultimate Hat, 7.22, offers 5 to 15% ult CDR Aurelion Sol, 7.24, 120/100/80 seconds --> 110/90/70 seconds Viktor, 8.4, 120/110/100 seconds --> 120/100/80 seconds Fiddlesticks, 8.4, 150/140/130 seconds --> 140/110/80 seconds Zed, 8.4, 120/100/80 seconds --> 120/90/60 seconds Lux, 8.7, Cooldown Refund on Kill 10/30/50% --> 30/40/50% +1.75 second grace time Malphite, 8.7, 130/115/100 seconds --> 130/105/80 seconds Presence of Mind, 8.7, refunds 10% of ultimate's flat cooldown on takedown

Ultimate cooldowns increased since Preseason: Malzahar, 8.2, 120/100/80 seconds --> 140/110/80 seconds Ornn, 8.2, 130/100/70 seconds --> 140/120/100 seconds Tristana, 8.4, 100/85/70 seconds --> 120/110/100 seconds Ryze, 8.5, 120 seconds --> 180 seconds

Keep in mind that these changes are in addition to a total of 40% Cooldown Reduction that have been added to itemization in Season 8, too. It just seems like they've been opting for cooldown reduction as a buff much more often lately. I'm worried they might not be aware of this.

If I missed any, please tell me.