It's kind of wild. I'm sure it is something that will have to be considered in the next CBA. I wouldn't be surprised if we see more 6 man rotations in the future. If I had a say, I'd be advocating for another roster spot for pitchers. Other than the added expense, I think it would be a win for both the players and management. The schedule is relentless sometimes.
I don't think any Front Office is going to try to get guys not to throw so hard or attempt to generate less torque. It wouldn't work anyway. The vast majority of guys who make it to the majors are way too competitive to take anything for granted.
Seemingly, the only way to help the issue is less usage.
It would make a lot of records untouchable, but many of them already are. Might have to re-calibrate what a HOF pitchers stats look like, but there are plenty of stats to show effectiveness in comparison to contemporaries.