Yeah, I remember them fondly but the big jacket collar, flares and light colored block heel boots are pretty dating. At least on TMP someone trimmed down McCoy's big collar before shooting.
Well, he did what he was requested to do. It wasn't his decision to scrap TMP's costuming.
As far as being dated, I personally find the WOK uniforms look at least as dated as TMP's. They fit the new decade's fashion ideals of emphasizing social status and affluence. This was the year after Ronald Reagan brought the morning coat back to the inauguration and white tie and tails to the inaugural ball, the pomp and opulence of the Charles-Diana wedding, and the premiere of Dynasty on TV with its never-ending parade of formal wear and jewels.
The WOK fabric and colors were rich looking, the style more formal. The uniforms were covered with contrasting stripes, straps, buckles and general eye-candy. The insignia became more like jewelry. Class distinctions were emphasized with completely different uniforms for enlisted personnel. Working in shirtsleeves was apparently not the thing for officers. The field jacket with its huge sweater-like collar may be the single most cluttered item of wardrobe in all Trek. It's all very high Eighties to me.
