Meh endings are a very common problem with the genre, not exclusive to AoT. It's very hard to find a good Shonen ending that managed to please everyone. : r/ShingekiNoKyojin

What Was the Last Video Game You Played? - Page 17 - Games

prison Chua Tek Ming~*Anime Power*~ !LiVe FoR AnImE, aNiMe FoR LiFe!

Spring Anime Catalogue 2015 – METANORN

The ending to attack on titan is one of the most overhated and

10 Shonen Anime That Failed To Understand Its Target Audience (& How)

Nasuverse Discussion Post – Dragon Quill

Spring Anime Catalogue 2015 – METANORN

Shingeki no Kyojin - 04 - Lost in Anime

romance Chua Tek Ming~*Anime Power*~ !LiVe FoR AnImE, aNiMe FoR

Was the ending of the Attack on Titan manga really that bad? The

emoetion/data/Cowboy Bebop at master · Havaldar/emoetion · GitHub