I don't believe it had any sun exposure; my play area is generally dark (one of the reason I went for the Elite over the regular Cosmos) and I opened it all indoors, so there shouldn't have been any direct exposure.
The picture you linked did look similar though; perhaps it was scorched somehow during manufacturing?
In any case, though, it seems my best bet is to use the warranty and send it back for repair/replacement, right? Not much I can do on my end as of right now.
I took pictures again of both lenses this time. Suprisingly the right white Dot was a lot harder to photograph for some reason!