Exactly how does that offer actually move the Pelicans closer to a successful rebuild?
Kuzma, Ball, and and Ingram are "nice" players who might be the cornerstones of a .500 team. Great -- that puts you at the bottom of the lottery or as a 7-8 seed, so you've just sabotaged your chances of getting that critical high draft pick. The picks - unless they are very far out -- are likely to be in the 20's as well. That might help keep the Pels a competitive .500 team for a longer term but again, no real chance at top-end talent.
The Lakers think that their offer is four quarters that add up to a dollar, and it doesn't work that way in the NBA. A realistic shot at the high-end of the lottery is worth more to a rebuilding team that a bunch of middling players/picks, but that high-end pick is exactly what the Lakers don't have.