Although Atlanta hasn't been playing that great the last two months, they were still a good team that Cleveland easily dispatched without kyrie. And love if you want to count him, I think Cleveland is just as good without him though.
LeBron is incredible, I've never been a huge fan, mainly because of all the LeBron fanboys and the whole decision thing was a disaster, but he's the most talented player to ever play the game. I don't recall who said it, but on the Colin cowherd show some nba analyst said building a team you'd take LeBron over Jordan. Which I think I'd have to agree with. I'm not sure LeBron will ever surpass Jordan on the greatest of all time list, but I think there is no question that he's the best player to build around. He does everything on the basketball court at an exceptional level and makes everyone better. Throw a bunch of misfits together and LeBron will make it work.
On a related note, LeBron was the best thing for kyrie's career. He's a pg without pg skills. Now he can do his thing, which he does very well, and LeBron covers for his lack of playmaking.