that's why the atdu gets auto penned by every bot even when you slightly angle. the example picture was taken using k21 top AP as a reference. this spot has around 700mm of armor and its the first place where bots aim on the tank.
the tank became almost unusable after 0.33 and pish nerf. sadly its the worst mbt at tier 10 for sure.
Fun fact, the Kraken skin concept was one of the few actual community skins. It came from one of the mods, Eisenherz. The result is very much based on his work, although the final design was of course done by our developers.