The Long Halloween is pretty good, came out in '96 I think. Plus they just did a 2 film adaptation. Although not the best DC animated film, it sticks to the source material and is devoid of any wokeness. Definitely my favorite DC film since Apokolips War.
Haha I forgot about the ending completely. You're right, the main villain gets let off the hook with no repourcussions at all. Now that I think about it, we get no closure at all for the atrocities committed throughout the movies.
As for Batman, his incompetence was part of his story arc. One of the themes was him falling into the role of "World's Greatest Detective". He was green at the beginning of the first film, but by the end of the second he had learned from his mistakes and grown as a character, or as a detective anyway.