Salisbury is writing about a pitching prospect with very good stuff that was a reasonably high draft pick now seen as one of our two best pitching prospects. I am sure he'd write the same thing about Medina.
And each have questions about durability and the ability to get higher level hitters out with any consistency. Howard is a good pitching prospect with much to prove, partially because of his slow promotion path for a top prospect. One can praise him as the article did, note some of the parts of his background that might make for slower development, and still think he has much to prove.
All in all it seems to be a good pick as he has developed more velocity than most scouts thought he would. We are probably both smart and lucky there.