The pick ATL has is actually the best of NOP/MIL, so even if NOP suddenly starts winning games... MIL may not and the Hawks may still get high odds.
MIL is kind of in a unique place in that their pick is the worst of NOP/MIL so they don't totally control their own draft fate, but they still have plenty of incentive to tank since both teams are so bad. MIL should theoretically be as bad as possible (while also wanting NOP to be as bad as possible). The best outcome for MIL is for NOP and MIL to get the #1 and #2 picks (with #1 going to ATL)