For clarity, I’m using “furniture” here to refer to placeable crafted items. I can’t recall if the game uses another term. There’s three factors that IMO come into play here:
Aestethics. For tables and chairs I don’t find the differences that jarring, but for lanterns, the color differences between fine and normal quality lanterns is kind of… drastic. So I can understand why you’d (general you) want all furniture of a certain type to be a certain quality.
Satisfaction. I’m not sure if the quality of a chair/table/bed/lantern changes how much the Hearthlings appreciate their surroundings (I’m guessing furniture plays into Shelter score?) and/or the effect you get from them sleeping in a bed or sitting on a chair while eating instead of on the ground. If there’s no difference, this isn’t an argument for installing the fine quality furniture, but if the Hearthlings actually appreciate good workmanship, I’d say that’s a pretty strong argument in favor of installing fine furniture.
Economics. On one hand, does a placed fine quality piece of furniture increase your wealth score more than a regular quality one? (Probably.) On the other, if you actually are actively using the traders, you might be wanting to save up the fine quality items for sale as they fetch higher prices.
What bugs me more about the quality thing is selecting crafters with high creativity, and then ending up having the traders come and request, say, 5 simple chairs. I’ll end up assigning 6-7 chairs, at least, to be crafted, because the traders won’t take the fine quality chairs and with my luck I’ll end up with at least one if I only ask the carpenter to make 5 chairs. This means I usually end up with a bunch of stray furniture hanging around. Not sure that this is desirable.
What I’d like to see, that I’ve sorta mentioned before, is a placeholder “best available” ghost item for all the functional furniture (tables, chairs, and beds, right now, I believe?), where the Hearthlings will prefer a fine comfy bed over a regular comfy bed, over a fine mean bed, over a regular mean bed, and preferably even replace lower-quality furniture with higher-quality furniture as the fine furniture becomes available. Obviously this might not be desirable in all cases, but at least for me personally, it’d take care of some obnoxious micro-management, especially in multistory buildings where placing/replacing furniture can otherwise be a bit of a pain.
I suppose when placing furniture from the menu (rather than by clicking a piece of furniture in your stockpile and selecting place, there could be a checkbox for “use best item” and that’d be remembered as long as the piece of furniture in question wasn’t moved. Or even have it be a checkbox/toggle in the little info box when selecting a placed piece of furniture.
I do like to keep my furniture etc uniform and symmetrical, but if I can tell my Hearthlings to replace furniture with better stuff as it becomes available, I could at least comfort myself with the thought that EVENTUALLY if I keep crafting I’ll end up with all fine comfy chairs in my dining hall.