I get the logic, and I probably take one year of the 2017 Sale over 10 years of Grissom. I just have my doubts that Sale is that pitcher any more, and also that he is going to get much better over the rest of his career. Corey Kluber had an impressive career at one point as well, and in fact his career at Sale's age stacks up pretty well with Sale's on some metrics. Granted, he is 3 years older, but also didn't develop his significant injury history until he was about Sale's current age, where as Sale has has issues for the past 5 years.
Of course, I assume Atlanta probably did some sort of physical before they extended him, but I can see plenty of reasons to be cautious with the 2024 version of Chris Sale...