It's quite possible that LC is far better than vidcutter, I agree. Another reply to me mentioned better keyboard shortcuts, for example. I don't think this speaks to the point of whether or not the extra storage usage is justified, though, as building the application in Electron doesn't necessarily translate to a better experience.

In fact one of the reasons people dislike Electron is that it tends to result in a non-native UI appearance, which can make an application harder to learn and use.