Skimmed this myself. Just looking at Scrypted's interface it looks like a consumer level interface akin to what I'd expect from a product such as Ring. That simple interface may be for some but to me it lacks sophistication and features. Yes BI lacks a good manual and explanation of all settings / menus / options. There's very little to guide you through intial setup or problem shooting, and yes there are occasional bugs especially with the App. Yes it's complicated with a steep initial learning curve unless you have prior NVR experience. However, I wouldn't give it up personally for something that appears to me (not having tried it) to be very consumer level. Just the alert & clip organisation would be enough to put me off.
Scrypted is highly configurable. The demo site does not include the management interface. The user facing app interface is intentionally simple/clean.