Well, Baltimore just moved the fences back. I think for the most part the tweaks are happening as teams seek more neutral park factors. Nobody really likes extreme ballparks anymore.
For the Jays, it has nothing to do with the game though and everything to do with the fan experience and making the ballpark better.
Baltimore might have overdone it though, lmao. I remember that ball Merrifield crushed there late in the year that died on the track. I could not believe it.