So if you check the appendix section, they say they're measuring latency not when the keyswitch makes contact, but when the finger first begins pressing on the key. So they're taking key travel time into account, and that ends up being the majority of the "latency".
It's a fair point for the gaming argument they make, if you want to jump 30ms quicker you'll need shorter keys. But it's not really correct to say the keyboard is adding so much latency when it's actually the user.
> So if you check the appendix section, they say they're measuring latency not when the keyswitch makes contact, but when the finger first begins pressing on the key. So they're taking key travel time into account, and that ends up being the majority of the "latency".
https://danluu.com/keyboard-latency/ puts a lot of keyboards >= 30 ms which is an insane amount of latency