So your "SaaS" basically turns the video into a gif? Why don't you just say that?
I guess this tool could be quite useful but it would suit you to share more information about compatibility (for email clients, not ESPs) and sizes of thse gifs / loads time. The gif in your tesla example is 7mb - that's a lot!
Around 2 years ago, I was in contact with a potential client. At the time, they didn’t send responsive emails. Even though this was a b2b, I argued that it would be crucial to have emails optimized for mobile devices due to the high number of opens from mobile. The client let me put litmus tracking on a few campaigns, and when the results showed 50%+ mobile users – and when they saw the emails from different mobile devices through litmus – they were convinced to let me make a responsive template for them.