Yes and here's why:
Freemans good year helped drive the team forward into a premature posture of being ready to really compete. It created the situation that AA is in today. He can't do nothing, so he gambles $23M on Donaldson. That might pay off and, assuming it was one of the few holes on the team, could certainly be justified. For instance, let's say the Braves had an internal RF ready to go and be a 2-3 win player with opportunity to develop into more and let's say that they had something similar for catcher, then bringing Donaldson in as a bridge/final piece for a really good 2019 team makes sense (all given the financial outlook that appears to be the case). Then AA can use his leftover cash to fill bullpen holes and bench and maybe spend some prospect capital if he chooses.
But that's not where he is. He gambles on a production boon out of Donaldson. Then he positions himself to fill other major holes by trading away his prospect capital because he really has no other choice given his payroll constraints. Other teams know he isn't a position of trading because he wants to, but has to so every team wants an overpay. He's got a choice: pay the price in prospect capital and try to compete now as 2018 suggests, spending prospect capital at a rate and level of talent not conducive to a long term window OR not pay the price, hold the prospects, try to sell the idea of scrap heap and declining guys like Muk as the answer and pray. Either option isn't really good.
This argument is completely different than: Was Freeman good in 2018? Is he worth his contract? Is he likely to be worth the rest of his contract? etc. etc. The tactical answer is yes, yes, yes.
The strategic answer is that when the Braves decided to rebuild they should have maximized all asset returns to very best ability with an eye on competing some time years in the future (given the expected payroll levels of the future). If ownership says in 2014: OK, we rebuild BUT in 2019 you can count on the payroll being top 5 in baseball (projected $180M+), no worse than top 10 in baseball (projected $160M+) then that informs the way you rebuild and fits closer to what the Braves have done. If ownership says modest payroll growth to flat by 2019 slotting you somewhere in the range of mid-point to below in baseball, then you rebuild like the Astros did - sell your assets for talent and draft position, take payroll very low and grow over time leaving yourself room as 2019 approaches to spend as necessary to fill in the blanks, all the while you try to lock up your best assets on good contracts and work ownership around to the idea of growing payroll y/y/y to maintain the excellence once you reach excellence.