If NQ items had a use then I would agree.
But if you don't HQ a food or potion just throw it in the trash it's basically failing a combined.
To be fair, they could rework the system to account for that. Let's say we take a 3 quality system, for 1-75% quality you get NQ, 76-99% HQ, 100% Pristine. Then you make the NQ actually not terrible, and HQ also good and Pristine not necessary but like more convenient. Examples:
For cosmetics, NQ is just the base cosmetic but undyable and untradeable, HQ is undyable tradeable, Pristine is dyable and tradeable. Cosmetics can desynth back to their rare base cost items when not bound only(when bound they desynth into random shit), so you can retry if you fuck it up, although you lose crystals and all the common materials.
For actual gear with stats, NQ is the current HQ stats, but with no overmelding, so it's useable but not great nor better than equal ilvl gear. HQ is overmeldable. Pristine is overmeldable but has one more guaranteed meld slot.
For consumables, instead of the current system, just make all food/pots the max value. Quality only affects output. NQ is 1, HQ is 2, Pristine is 4. For food instead you could scale the duration and always get the same amount, whichever.
Current items that don't have quality could use the same system, like dyes and furniture, get pristine to get more of them if you want. Wouldn't be worth it for dyes but for furniture with expensive mats it'd be nice.
Then make Pristine basically impossible to macro by requiring really high values that you can only get by fishing for procs and what not. Rescale desynth like I said so you can try again at a low cost loss if you fuck up(still takes a long time since it's a manual craft, so it balances out like that).
It'd be rewarding for people who like crafting, and useable by people who just macro(getting a 51% guaranteed macro wouldn't be too hard). Also makes HQ mats more valuable if you can hit Pristine more easily with them when it's hard to do normally(in fact it should be balanced around HQ mats).
Mind you I highly doubt they'd go for such a system, since they tend to not really want overly complex or hard stuff in their games besides Ultimate. I think at the end of the day they're gonna simplify crafting a shit ton and make it pretty boring but accessible to more people, not as bad as WoW 1click to craft system but still a lot easier.