I suspect Story is going to get at least 8 guaranteed and/or opt outs after 1 or 2 seasons (if he has to settle for 4 or 5 years). I kind of doubt the market completely sours on him after one average season, but who knows. Seager is still in the playoffs and might elevate himself above Story. Correa is in the playoffs and might further the gap between himself and the others that it affects the others.
The one thing that sticks out to me about his 2021 season vs other seasons is that his BABIP was merely around league average whereas he is clearly above that in his previous seasons. This was something that occurred throughout 2021. Now, maybe the season was an anomaly, or maybe there's something else in the scouting that suggests there might be some Troy Tulowitzki about to happen decline about to happen. Although in fairness to Story, he has been more durable than Tulowitzki, and injuries kind of brought Tulowitzki's demise.
All that said, yes, the Tigers need to address SS and need to have several avenues to pursue. Maybe Story is indeed the best available fit. Maybe Correa and Seager resign and the Yankees go after Story and the Tigers are left going after the others (and we should probably pray that Baez long term isn't one of them).