Why deliberately avoid matching cabinets and kitchen furniture?

To be fair Sims 3 was just as bad, it's like the Sims team(s) for years are quirky bohemians and expects everyone to be too, or they genuinely don't cooperate between each other at all and actually have no clue what the guy at the desk next to them is designing. At all.

The difference, of course, is the color wheel. In Sims 3 the stainless steel items were just as horribly matched but then you could force them to match. We don't have that "luxury" here thanks to it being intended as an online game.