The Braves are about to pay Gonzalez to sit at home or play for someone else since he was DFA'd, so how is that much different from doing the same for Kemp?
And by cutting Kemp (and paying $43M over 2 years) as opposed to taking on the combo of Gonzalez/Kazmir/McCarthy contracts for a year), the Braves are spending a total of $53M.
So essentially they couldve gotten the same result (get rid of Kemp) for $10M less if they just cut him, considering nobody is expecting Kazmir/McCarthy to provide any value given for 2018 given their injury history and inconsistency.
Getting Culberson in the deal is better than just cutting Kemp. At least the Braves have something to show for the deal instead of just cutting Kemp and having him on the books in 2019.