If you’re selling dashboarding, you need to show that dashboarding really quickly. I looked at the site, skipped through the video and saw nothing. I did see something on the docs site, but I was lost at that point.
I would go further and say, in a crowded space like that with some excellent free options (i'd also add https://redash.io/ to the list which is very pleasant to work with), you need to show what actually differentiates you from those free and mature solutions.