Posts like this are so obviously dishonest, I'm not even sure you're not trying to troll. But let's just call out all your BS.
"The previous front office repeatedly showed an inability to develop and maximize its own young talent, especially pitching, so why would we assume things would've played out the same way?"
The previous FO kept a window of opportunity open for a decade because they built their own pitching pipeline. From 01-10, they had roughly 140 games started by FA pitchers (and that counts Radke). That was because Ryan, before he left, and Radcliff developed a strong farm system. They constantly retooled the Twins from a nucleus of Guzman, Hunter, Koskie, etc to Kubel, Morneau, Santana, and added more arms like Garza, Baker, Slowey. They left after 07 and both came back in 12. In three seasons, they had the next wave of players up for the playoff run that went to the last series of the season.*
"The Twins lost the most games in baseball in 2016, as well as from 2011 through 2016 overall, and went 6 straight years without making the playoffs. It is not controversial in the least to say the franchise was in despair at that point in time."
You say this because you know 1) it includes a period of time that wasn't covered by the previous FO, and you obviously ignore the short rebuild to 2015 b/c that screws up your story.
So what we know about Terry Ryan was that, unlike this FO, he could build up minor league pitching pipeline, that he could keep a window of contention open longer than this FO. So, yeah, I think it's very obvious that had he stayed, this team would still have made the playoffs because the nucleus we had was going to do that, no matter who was in charge.
The previous FO impact is so apparent that 1) the Twins best pitching and hitting prospect coming into 2021 were still players acquired by that old FO despite this FO failing to graduate their #1 pick or there other first round picks. 2) This year the WAR of players acquired by the previous FO is 14 while the WAR of players acquired by this FO is 1. That means that the FO has utterly failed to assist the nucleus they inherited.
*Now, of course this is the part where you say "Ryan didn't acquire the good players Smith did" despite pinning 2011 on him. Whatever. If Ryan = Smith, fine. They still kept the window of contention open longer than this one did.
Essentially, your entire argument is "Twins drafted bad in 2013-2015, I was spoiled from watching the team compete for a decade so I never understand rebuilding."
Is my post too Ryan-friendly? Yes, obviously. He made numerous mistakes although hiring Brad Steil was a great move. But the revisionist history we're seeing from TD is over the top. Twins had 4 losing seasons in a row. White Sox had 7 (and 8 out of 9), Astros had 6. Etc. This FO had a simple job - assist the nucleus and extend the window of opportunity. They utterly failed on the second one and how much they assisted is up for debate.