Because it was going about 2 km/h at the very top.
I have to admit, my hype level was pretty high at some point, but now that I see the ride testing, it is dropping significantly. I saw a video today of its stall. While it would deliver insane hangtime, it also means that the subsequent elements will have a bit less momentum. The speed of those test runs appears to be in line with the official rendering (allthough it might currently run just a bit slower), so my lower expectations might be a good thing. Low expecations might cause me to be blown away when I finally get to ride it; which is something, that I truly miss.
As I got the feeling that people are already preparing their pitchforks and torches if I further dare to critizise the speed of Voltron Nevera powered by Rimac, I won't comment on that topic anymore. I will be happy if I am proven wrong, and I want to be prooven wrong. But for that, the ride will have to be open, and that is going to take a couple of months.