He actually did it correctly. If the hole in the shaft doesn't line up with the hole in the rocker it's wrong. Most are wrong. I've done I don't even remember how many Hemis and not one lined up. Just like the few T/A heads and the W-2/5 stuff. None of them line up.
Bought some Hughes rockers once. They didn't line up either. Had to lay out and drill those out too. Wasn't too happy because before I ordered them, Dave said they lined up. When they didn't, he said they don't need to.