I mean you can say that's what happened all you want but it's way more nuanced than that. The reason Kaepernick spent the offseason working on his touch and accuracy (also changed up his throwing mechanics) is because Kaepernick has always had issues with his touch and accuracy. His struggles there have been there since day one. They haven't been exacerbated by the lack of running they just stopped being masked. Also, the amount of zone read they ran in previous seasons is overstated. They didn't use it significantly less last year than the years prior. What was different was that Kaepernick didn't run when the yardage was there while dropping back to pass. That was probably something the coaches told him to do and no one can be sure why. But I don't think he wasn't the problem. Combine that with our O-line playing like trash, our only vertical threat having an awful year, and bad play calling/scheme and you get the 28th ranked offense.
I follow that blog so I've read that before. I've also seen all those plays live. Like I said he's got stuff to work on. I never said he was part of the NFL elite. He could be but he's not there yet. Sometimes you get throws like that from him. It's why he's worked on what he did this offseason. And sometimes you get plays no one else can make. It tends to balance out over the course of the season. Are you trying to imply he's not NFL starter material? Because I'd strongly disagree. Other than that I can't argue that he doesn't need to really improve on what's written in there.
They really didn't change all that much other than telling him not to scramble. The defense covered up a lot of the offensive issues, and there were A LOT that were ignored due to the team's success, that were present for Harbaugh's entire tenure. They finally came to a head last year and were compounded by injuries. The narrative about abandoning tthe zone read isn't representative of what actually happened.
It's going to be very interesting. Although I think after watching him a few years Harbaugh's "QB whisperer" persona is a little overstated. Kaep's development really stalled the last year or so. His old QB coach is now the OC so that should help the transition a bit. And Harbaugh wasn't infallible. I've said it like six times so far but his offenses had major issues down to the schematic level no one talked about until they blew up in our face. Overall I think he'll be ok. He's been around the block a few times at this point. Whether he progresses or not we shall see. But even if he doesn't I'd say he's a solid NFL QB all things considered when you look at his contract and the state of the QB position around the league.
Anyway, sorry for the novel I could rant about this for hours. It's been beaten to death in 49er circles.