Indeed rightly or wrongly, concepts such as stress, inconvenience, suffering, loss of enjoyment are all alien to EC261, and to a large extent civil law. The inconvenience aspect does get a mention but it's tightly drawn, and in the case of delays isn't spelled out in the Regulation itself. Package holiday protection is a notable exception where loss of enjoyment is regarded as actionable. Otherwise the court process is happiest repairing direct and quantifiable loss, and as soon as you move away from that the stickier things get.