Sadly, no. I'm mostly going off Allan's comments on the DN thread where he talks about them using their illustrations.

And also than they haven't been running around issuing DMCA's to every _other_ flat UI style everything.

Clearly, they believe specific assets were copied to the point that a DMCA was appropriate. Pending a full post from LV, I'm giving them the benefit, as I'm certainly not giving the benefit of the doubt to the designers who so thoroughly ripped LV's style.

Should that post never come, or its contents show LV as trying to enforce a copyright on something that was merely "inspired" and not copied, I'll change my tone.

It doesn't matter. A valid DMCA takedown notice is fully self-contained. There's no follow-up, no sending someone to a blog post, or anything else. If it's not in the takedown, it's not material to the claim.

Refer to Perfect 10, Inc. v. Google if you're curious.