I think the thing with bodies breaking down is less positions and more with size.
It's hard to compare because people of size are all different. Look at Mark Teixeira. He isn't as big as freeman, but he played some 3B. He was basically done being an effective consistently by 32.
To me Freeman's long term efficacy comes down to the DH. I think he could easily have a Jim Thome finale to his career. But Thome was basically a DH post 34,
That's what I think is causing the difference between the two sides. Freeman's reps look at it as "look - the DH is coming and Ozuna will be off your books in three years, so you can shift Freddie to DH if you need to at that point". There are problems with that line of thinking though...
1.) I still don't think AA wants a full-time DH because it costs you flexibility. If they could get out from under Ozuna they would, but they're willing to take the hit and let him play defense every-so-often if it allows them to give somebody else a day off without taking their bat out of the lineup. I honestly think this is why they preferred Ozuna over Cruz when he was signed.
2.) If Freddie becomes a defensive liability when he turns 34 like Thome and Cabrera (and arguably Pujols as well), what do you do when you have both he and Ozuna are on the roster and neither can play defense? Platoon them at DH? That would be a $48 million platoon in 2024.
3.) If his bat is still effective as long as Pujols' was AND he can still play passable defense that long, you're still left with a $30 million DH for three seasons. That would make him the third one of those in MLB history. How are those Cabrera and Stanton deals working out -
even with the DH? Stanton had a "great" year last year, but he still was only able to give the Yankees 139 games when they played him as a DH almost exclusively. He played in the OF 26 times and got banged up enough doing that that he missed 33 games. He's a year younger than Freeman - is it wrong to expect to see Freddie start missing more games, especially if he continues to play defense? Of course not, but even DHs get quad strains, hamstring pulls, oblique strains, etc.. If Freeman somehow dodges those, he'll be the first person to ever beat Father Time.
The longer this goes on, the worse Alex' options look. Rizzo's the same age as Freddie and is already in decline, and Olson's going to cost a haul. If he wants to preserve the organizational depth in the event they want to trade for an OF, it almost feels like he has no choice other than to cave and give Freddie what he wants and cross his fingers hoping he stays healthy enough to continue playing 1B for at least the first three years of the deal. I realize Bryant's still out there and you could add him and shift Riley to 1B, but that makes you awfully right-handed. Schwarber doesn't really fit anywhere defensively, and there are probably too many questions about Conforto to try signing him for LF and Rizzo for 1B.