To me the major benefits of shadow DOM only come into play when you're making a web page composed of components that you don't fully own. Whether that's differe

To me the major benefits of shadow DOM only come into play when you're making a web page composed of components that you don't fully own. Whether that's different teams maintaining different components, or you acquired some components from a third party vendor, or even just to isolate your host's (like wix/other site builders) components from your own. Shadow DOM lets things play together more nicely and without as much mutual trust needed.