Study has demonstrated exactly what most of us thought: there were multiple types of ball in use by MLB, with vastly different properties:
https://www.insider.com/mlb-used-two-balls-again-this-year-and-evidence-points-to-a-third-2022-12Weirder, though, is that there was a third group (not juiced, not dead), and most of the baseballs with ideal properties showed up in Yankees games, playoff games and on commemorative balls.
I'm not going to leap to causality there, for the simple reason that MLB struggles to even accomplish basic coordination to keep a multibillion dollar industry running, never mind a giant conspiracy to make the newly-rechristened Arson Judge hit dingers. More likely, variation occurred (as they article suggests) by the time of production for the balls, and MLB was so lazy and unconcerned about consistency that they just shipped balls in completed batches wherever they were needed.
More, though, it's that MLB keeps telling obvious lies. Obvious enough that I suspect the intent is to cover their own incompetence rather than malice, because mixing in juiced 2021 balls with dead 2022 balls is the sort of thing I can see baseball doing for a variety of profoundly stupid Manfredian reasons (too cheap to make a full year's worth, had production issues during COVID that meant they couldn't get a full year's worth made in time, that sort of thing). The first rule of giant conspiracies is to have a good lie prepared, and MLB couldn't bluff a toddler.
Same with the commemorative balls: nothing would be more MLB than to prioritize making those in a single batch, asking that something be done to them that makes them look nicer than the average ball, completely disregarding that it might result in them having different properties that would affect competition. If they wanted Judge to hit more dingers, they could have sent the Yankees the juiced 2021 balls they were using...instead, they seem to have sent ones from the batch created for the commemorative balls, which were the median option, probably because they were shinier or something equally braindead.