This is the same bike as the AMG Petronas road-bike right? It wouldn't surprise me if LightCarbon helped some other brand get UCI approval for the design, but because of how the process works, that certification belongs to the brand for the specific frame and fork tested. An example is the Cinelli Pressure and Engine 11 road frame, which have UCI approval, but the Raceline Hider and the Top Carbon versions don't.
I know it's a minority view on this forum, but I like seeing brands get their frames approved. To me, it signals that they think their bike is good enough and that they are serious about their product and brand as a player in the sport. Many Chinese brands have their frames approved, including Tavelo, Winspace, Elilee, Seka, Yoeleo, Triaero, Rollingston, Sunpeed, XDS and Pardus. The one frame that stands out on the list, though, is the ICAN FL1 since its under the OEM brand, and I would have assumed they would only seek approval for their Triaero brand.
I don't know if any frame checking happens outside of UCI-level events or the pro fields at nationals. I suspect it doesn't, which is why a team could probably get away with it for as long as they did.