There is no video for Kubernetes, in 1st video its says we will cover all this but then it says you got all that. Where are the videos?

They’re not missing. The whole section of GKE (Section 12) is an entirely different course named "Kubernetes Deep Dive" led by Nigel Poulton. If you look into the [Resources] tab of lecture 12.1 in Mattias’s course, you will see the link leads you to Nigel’s course.