Everyone was eating burgers, though. The point of the scene was “even heroes need to rest.” It’s at level 81, right after they just succeeded in dismantling a tower. (The emphasis on G’raha eating during a celebration dinner as specifically egregious is strange to me, as it would be if there was similar disgust over Alisaie’s pickles.)

Likewise, the scene with G’raha admiring Estinien is during down time during the MSQ and features a much more obvious comedy note in Estinien mistaking Alisaie for Alphinaud. I don’t think every moment of comedy lands—and if you want an example with G’raha alone, I found the bit where he pretends to be a crystal buyer in 5.4 stupid and pointless—but all of it is in line with the rest.