Chowdry's plan was to transfer the landing rights to AAWH, move a few planes to Atlas and then shut Polar down. Jeff Erickson confirmed this plan at many meetings. Chowdry died, and so did his ability to pull it off. The remaining managers were unable to do it and decided to make an attempt to make Polar work.
That being said, both airlines benefited from the purchase. Atlas gained access to ramp space and ground support. Polar gained access to a worldwide parts system and an infusion of cash, and mainly a management team that wanted them to survive, ie, not just a tax write-off.
DHL gains access to Japan and China, and gets some heavy lift. Polar gains a partner to share the costs and maybe fill their planes. Hopefully some cargo that goes back to Asia, out of Europe.