It shouldn't have taken this many requests to get an actual argument with evidence presented. I'll admit, I didn't remember that Gonsalves was that high in 2018, so I definitely erred by how I undersold him. However, the two biggest problems with your argument aren't the ones you apologized for:
1) You're making the argument that it wasn't "Barren" - who said it was barren? Gunnathor referred to it as a "nice" array of talent. I think the counter argument, which has been done almost exclusively with evidence has been, "No...not nice. Quite below average". Even is Gonsalves was the next greatest pitcher in baseball, I'm still not sure that would qualify the Twins farm at the time as "nice". Especially when you consider how bad they were in 2016 and 2017 and the overhaul done to the pitching staff by the time they were not bad in 2019 and 2020. One player might defeat (in a strictly literal sense) the idea it was barren, but no one is arguing that so it doesn't really matter. It's the sum total of what was available. And, again, it wasn't good. Which leads me to....
2) The guy you cited as evidence the cupboards weren't barren is not good at baseball. He's a total flop. Sure, we have the benefit of hindsight now, but it's become abundantly clear that the guys in the farm at the time were mostly not good players. I mean, gunnathor cited Tyler Jay in his list. Tyler Jay!!!!! You're making the opposite case of what you mean to: If Gonsalves is proof, by virtue of having a spot on a top 100 list, that the farm was good and he was our best prospect....isn't that a massive indictment? Our best prospect in the minors was a dud and almost everyone else turned out duds too. How can that possibly qualify as a "nice" group of talents?