I don't really buy the deadened ball theory as an explanation for his shrinking offensive output. Cavan needs to start squaring up baseballs at a greater rate if he's to return to his previous power output. In 2021 he largely went away from his strengths, namely his elite plate discipline, and started swinging at more pitches off of the plate. This resulted in an increased k rate and decreased walk rate. When you look at his batted ball numbers his best output by far was in his 2019 debut season, his hard hit rate was easily the best of his career. Since then he has stopped squaring up baseballs with as much regularity, as is evidenced by shrinking hard hit rates and barrel rates from 2019 onwards.
I think this year is his make or break year to remain with the Blue Jays given the large amount of good infield prospects in the upper levels of the minors. His injury plagued 2021 season can largely be ignored, I don't see how you can reasonably expect any player to play up to their capabilities when dealing with injuries to both hands, the neck and back as well as an elbow injury issue. It's far too early to make any conclusions in 2022 as he has all of 6 batted ball events at this point. It might be time to pump the brakes a little on definitively concluding that the guy is washed up.