BD Live was just a marketing gimmick that people tired of almost instantly. Good riddance.
BD Live simply used the internet to connect to movie trailers. BD Live had to launch first when loading a disc and the reward for waiting was advertising. Any internet or network issues made that wait even longer.

I do not buy blu-rays to be made to wait for connection to an adbot before I can play my disc.
If I want to see ads for other movies, I can do that online anytime. I never wanted my blu-ray player to force feed me trailers. The ones that are recorded on the disc itself can be easily bypassed; the menu or chapter skip buttons make doing so fast & simple.
I disabled BD Live years ago on every player that I own; it was an utterly worthless feature well deserving of its death. If it has a grave, show me where that I may relieve myself upon it.