Hmm, you may be right in a way that for aesthetic purposes (under which I file carbon interiors), the products are coated in such a way that UV discoloration is not such an item. In "my" industry, we have other priorities
Regarding the micro cracks: yes, it happens. Generally, it is not such an issue, as CFRP products are typically designed to put the fibers in tension. however, when you have a wheel that rotates, and pressure is placed on one side, the whole outer barrel is being pushed through a typical fatigue cycle of compression-tension-compression-tension, etc. Add to that large impulses like potholes every now and then, you're bound to get cracks in the resin at one point. Different types of resin have different resillience to this effect though. Also, the typical fatigue life of a wheel is quite predictable, so it might be that these wheels are designed to last say 15 years or so...
Btw, I didn't find it really clear from the news articles: is this braiding machine and the manufacturing of these CF wheels done by Porsche in house, or did they finance the development/outsource it and are they presenting it as their own?
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Porsche, separates Le Mans from Le Boys