Thanks MillerTime, appreciate the feedback!
I sent an email with the picture to both the dealer I bought the trailer from and Jake Carter at Rockwood. I wanted to get this issue on record with both under the warranty period.
It might be more of an issue when the rubber gets crusty than when its still pliable.
That's exactly what prompted my post. Not sure how hard I should push to resolve now or just document now and keep an eye on it.