Its not just Skinny avatars or Trindemic knight armor. Fat avatars and most armor looks bad ever since they made everyone jacked. Capes also look terrible.
Then there is the long standing awfulness of Trindemic knight shoulders on females.
They really need a artist to do a second pass on all the armors and body types. Most of the oddities were introduced when they changed the muclemass, and on females they made boobs larger and waist smaller. It distorted all the armors/capes.