Yankee was talking about this scene:
Note the protruding shape of the front landing gear door as suggested by highlight and shadowing. Now compare that to:
Su-33:
J-15:
J-15T (before it got the double door treatment):
Notice how J-15T's door has a much more pronounced bulge due to the beefier CATOBAR landing gear. It closely match the (presumably CATOBAR) Su-33 in Evangelion.
Shilao was like how do you know that's CATOBAR Su-33 and not J-15T under UN command and colour? What if in that world in some other part of the globe is UNS Fujian with a ship full of F/A-18?