I actually liked BID until it became apparent that it was impossible to escape that song. Of all the songs on LT, that's the one that casuals latched on to and said "LP's still got it". Then of course the 87 remixes didn't help much.
It was an ok tune. Catchy... but it was overkill after a while. That being said, if Heavy can match or better BID's success as a single, it's probably worth it.
Also yes, LP as a surprise at the Grammy's to debut Heavy would be incredible, but I refuse to get my hopes up for that lol.