I think he's better than Cavani(but there's not much between the two of them), but most importantly he and Cavani would make for a great pairing up top and PSG could afford him AND Alex Sandro AND Lemar
Aubameyang+Cavani > Cavani+Draxler
I also think if they had Auba instead of Cavani the 6-1 maybe doesn't happen
Honestly, if they have an even better player lined up(Cristiano, Bale, Lewandowski, Suarez, Neymar, Messi, Griezmann) or an equally good player that would fit them better(Alexis, Hazard, Dybala, Muller), or a young prodigy they feel they only have a chance to sign right now(Mbappé...Dembélé...) it would make sense
Otherwise them pulling out of the deal was stupid