Pretzels in a foil pouch cheapens the impression of quality. Haven’t QF seen how other airlines do it? It doesn’t even have to be “warm nuts in a bowl” (which is great), This shurley is something that has slipped under the Rockpool inspiration process.
Yes, the devil is in the detail, and it is the small things (and generally easy to do) that turn a reasonable business class service into a memorable one.