Honestly, it's really easy to disparage anything in the world with this "think of the children" defense but this grind is not that bad, OP is level 50 in all DoH and frankly they're just afraid of melding for no good reason. If they'd just pick a class to focus on I'm sure they'd be doing 2 stars and 3 stars in no time.

Yes if you want 3 Star and Supra for all your crafting classes it's a massive grind, but that's your own fault. Making a system that discourages everyone from passively achieving 3 star recipes from a few hours a night for a week or two is just better for the economy and game. I'll definitely prefer a system where people are weeded out (even I myself am weeded out since I don't have all my DoH at 50) as opposed to one where there is no demand since EVERYONE has all the same crafting ability.