Depending on the player you ask it could be true (as well as with other players). I'm sure there were a lot of players that didn't want to come to the team because of Kg especially with his reputation for being one of the most hated. There are also players (Lebron and Kobe) and coaches (in particular Bird and Pop) that are on record saying some very good things about Rondo. It just depends on who you ask and how you ask the question.
This is what I'm thinking too. Rondo is a love him or hate him kind of guy. For instance we have Kobe on record saying:
"From what I understand he's an [butthole] like me, so he'll manage."
"You don't want Rondo? Send him my way," Kobe declared. "I love everything about him. Everything. I love his attitude, I love his chippiness, his edge, his intellect, his know-it-allness. All of it. That's what makes championship players.
"What guard have you seen at his size that will get you 18 assists, 17 boards and 20 points all in one game? That's unheard of. I love that kid. I always make a point of talking to him during All-Star [Weekend]. He's one of my favorites."
And while we have other players are networking and building friendships on Team USA, Rondo withdraws from the team and says he'll never play for them again. I wouldn't be surprised if that rubbed a few other stars the wrong way.
I can see a lot of the goofballs, the not so serious guys around the league not wanting to play with Rondo. A goofball like Dwight Howard, who couldn't play with Nash and didn't like playing with Kobe, no way he could play with Rondo.
It's like the Kobe/Shaq split. It seemed like most people would prefer to play with Shaq, he's a blast to be around and doesn't take anything too seriously, Kobe on the other hand...
That's how I see Rondo. No matter how many easy buckets he can get you, some people just don't want to put up with his ornery personality. Not that everybody wouldn't want to play with him, but I can see some who definitely wouldn't.