No not just that part of his comments. Lebron is just not a great or good man defender. He's a very good help defender but one on one he isnt that good.
I wouldn't mind having LeBron on pretty much any player in the league. But he's just good, not great or one of the best. But he is one of the best off ball defenders because of how much ground he covers so quickly. And he thinks a step ahead of a lot of players. For ex. he'll close out on a shooter and then jump in the passing lane for the swing pass instead of just focusing on stopping the shot, he's already thinking of stopping the pass. His on ball D is highly overblown though.
Exact reasons why I consider him overall as a good defender.. not great.
And thats all I was getting at.
@RG3 also made a point that I tried to make, he just presented it better.