I'll take your lack of answer to the very basic question I asked as you simply being unable to answer. I'll help you out, Hoffman struggles on days when he isn't commanding his pitches and he doesn't always bring his best stuff into games as well. It's really that easy. The inning he's pitching is is almost completely immaterial compared to whether he's effectively placing his pitches where he needs to with sufficient stuff to miss barrels and bats. When you point at the inning nearly in entirety as the reason to why Hoffman is failing or succeeding you are displaying a lack of basic understanding of why he actually tends to struggle at times.
The reason for the recent struggles are easily verified with the Stuff+ location metric. In the 4 outings prior to last night's dominant performance Hoffman produced an average location + of only 81 to go along with an overall stuff rating of only 100. These outings saw him not bringing his best stuff into the game and compounding things further was the inability to command the subpar stuff on top of that. These outings all came before the 9th inning, and the inning he was pitching in had literally nothing to do with his struggles, much as the inning he's pitching in has nothing to do with his success. When Hoffman brings his good stuff and command into games he's fully capable of dominating in any inning of the game, and when you use this reductive declaration of him being dominant because he's not closing it's missing the forest for the trees.
On top of that your reading comprehension could use some work. My original statement that triggered this conversation was that last night's version of Hoffman would be dominant in any inning of the game. He brought an absolutely filthy slider into the game and dominated the middle of the order of MLB's best offense. I'm not saying Hoffman should be closing in place of Varland as it's impossible to argue against the perfect results Varland has produced in the spot, but I'm simply pushing back against this overly simplified narrative of Hoffman's dominance being due to him pitching in a non closer's role while largely ignoring the drastic change of his pitch usage.