With the amount of media coverage this is getting, while this has helped the case a lot in finding GP, it could also be a hindrance to LE. I can think of three things:
1. Maybe LE are using this to their advantage to make BL, his parents and whoever is watching and helping him, think they are onto the 'wrong' track. When in fact they could be looking for him elsewhere as well that they haven't released to the media or the public. I mean he's obviously not dumb, but if he is watching everything right now, he wouldn't be in the area they are searching still.
2. Maybe he's just hiding in plain sight, in a house somewhere (maybe some family friends are helping him or his parents did when he contacted them )...and he's watching it all with enough supplies to last him months. Unless he goes out and moves around, the chances of catching him would be very slim.
3. Maybe he got some fake IDs and tons of cash in hand and left the state/country...and leaving no digital trail at all. He probably got a few burner phones under fake name to access his IG or watch the news. I see people saying he's still accessing his IG etc which I wouldn't be surprised, he obviously loves the attention.
I think the longer it takes them to find him, the more confident he's gonna get and he will eventually get sloppy thinking he's gotten away with it. And that's when they will catch him. But who knows if and when this will happen.