Honestly using Hades as the villain for every greek mythology story because he happens to rule over the afterlife would be like if 3000 years from now they made a bunch of Justice League movies where Batman was the villain because he has the darkest costume
There was also the thing where he imprisoned a goddess against her will because he was lonely. Hades is the bad guy.
Ok but it’s not like the other greek gods had the moral high ground on that, there’s no reason why Abduction McLonesome is more fit to be the villain than, say, his brother Zeus who kept transforming into stuff and forcing himself on women, or Kronos who kept eating his own children