TI does it too. I had to press an FAE for answers, they wouldn't post as such in the e2e thread, but turns out the UCC256303 is internally NRND. Why they don't tell marketing to say the same, I have no clue. It sure goes further to paint them as an incompetent company.
I haven't heard any good reasons why they shouldn't. Mind, I have heard possible reasons. Just not good ones.
But, perhaps those same (bad) reasons, are why MCP doesn't for this one.
Tim