I don't have anything to prove that it is not CVT related, at the same time, the whine/vibration goes away if I speed up or slow down and get RPM below 1500. The speed of the vehicle is irrelevant. At any speed, if I am at 1500rpm, it would whine. Do you still think it is CVT related? I thought RPM would be related to the engine.
Also, the vibrations you're feeling could be the CVT trying to hunt for the right gear ratio. If someone else drives the car mostly, it has adapted to that driver's habits.
My wife is the primary driver of the car and she mentions too. She claims that it is getting louder lately so she wanted me to drive for a day that I was making 100-mile trip so I will understand what she is telling me about.
Also, these engines also tend to drink oil. Mine takes 1 quart at least between 6000 mile OCI's. Some owners report using more. Keep an eye on that oil level.
Luckily, mine doesn't drink oil (yet). I check oil level every 2 weeks and so far max I have added is a 1/4 quart over the OCI.
Does the engine and drive train have 5 year 60k warranty? Search for the problem it is one of the only things I feel the internet is good for.
I have been searching but so far I found nothing.
And as @Fotoflame mentioned, unless someone really drives, it is very difficult to explain the problem. So if others are facing these problems, maybe the term usage is where I am missing to find similar topics.