If his conditioning is so bad, why would the Lakers take him? And any other team would have taken him to. If he's top 4 in the MVP race with bad conditioning, that's even more reason to keep him.
The Mavs deny it, but the insiders think the only logical reason is if Doncic demanded it. But still, they could have gotten a better return on the trade from another team.
They're not paying him $350 million.
He'll have to settle for $229 million with the Lakers instead. If he turned out to be a bum, it's not as bad of an investment. Besides, they'll still get to still sell jerseys and tickets off Luka even if he ends up getting hurt all the time. Especially with LeBron retiring.