What are you talking about, please read that post again if that's your takeaway.
The point is not that the Cubs were tragically unlucky the last 2 years(though I think you can argue their 2024 level is a bit higher than 83 wins), it's that unlike recent offseasons(and most offseasons for every team) they don't have to replace the production of a Contreras, Stroman, Bellinger, etc just to get back to their previous level. That means if they make steady but unspectacular improvements, they're going to be considered the best team in the division and likely on par with the Philly/Mets/Arizona tier they've been a little short of the last 2 years.