That and was a gateway to Android for some iOS users as well. That was the intention between the obvious similarities. Same feel, same front, same storage options (except 256), same pricing, adapters and special software specially to transfer your iPhone stuff to your Pixel.
LG has a niche, but they need broader appeal. Find that set of gateway features and go wide talking them up. Get carrier backing, hell get Google backing. The only way for LG to explode is to make something everyone is talking about. I have people that don't know anything about phones (and don't care) ask about the Google phone. That's what marketing can do.
I'm not saying anything you don't know, just trying to write the whole point down. It is possible for LG to grow, but it's going to take time, more money and a whole lot more effort.