Their marketing is good, they do a primo job at conveying the message in a nice looking way, but the end result is still HTML littered with hundreds classes, that gets hard to maintain and impossible to refactor.
Edit: here's a stark contrast of another promotional video for some tool doing a better job (IMO): https://www.youtube.com/channel/UCaNsjhUdh3BxFL6tzyuhc9g
The music was custom scored for us by the best man at my wedding, and we had a professional opera singer record all of the chants at the end which are literally "utility first" in Latin.
It's completely outrageous and absurd :) It's the Old Spice commercial of launch videos.