Videos are not documentation.
They can be used to demonstrate examples of how to do a particular task, but as other commenters have mentioned, documentation involves listing classes, functions, parameters, etc and clearly explaining what they all do, in a searchable manner. Text is searchable, video is not.
That’s unfortunate.
Instead of requiring an insurance selection or defaulting to one specific instance, perhaps they could have a handful of moderate/large instances that the app randomly selects between when a user signs up. That would spread out the signups from people who don’t understand the instances.