The point is that using one situation as an example of Durant's virtue while using another situation as an example of James' vice, when the two situations are not, in fact, analogous, is intellectually dishonest. LeBron James having a tremendous ego does not make a single thing I said in my post wrong. And it is, in fact, not wrong: it's to Durant's credit that he didn't make a big deal out of signing his extension, but when James was in Durant's situation, he quietly signed an extension, too, but people want to pretend like that didn't happen.
You can act like you know that Durant's not going to go through this when he becomes an unrestricted free agent, but it hasn't happened yet, and the fact is that you don't know, and neither does anybody else; it does, in fact, remain to be seen.