That is evidence of what I was saying, but I think more to do with the bead of the tire which likely would not be an alloy rim issue.
Some tires have a more pronounced bead that will slip in better under a smoother carbon hook. I use Veloflex Master 25s on my Mercury M5 carbon clinchers. They hook in better.
I do not know about these Light Bicycle Wheels but often wheel manufactures will swap out suppliers for one component to the next. The same Asian made rims will find their way to multiple brands, and the same model wheel may have a different rim from one year to the next.