What’s good for making more money is not always or even often good for what we would think of as customer-friendly business. If you can wring more money out of a few whales at the expense of pissing off customers who don’t create as much revenue, then in our current system that’s what shareholders apparently want.
Reddit wants more users in their official app where they can target them for ads, sell NFTs, and whatever other bullshit they want to sell. It doesn’t matter if the experience is worse, and it probably doesn’t really matter if a couple thousand 3PA users split for good. As long as they can tell investors that the official app use is growing and that they can target a greater percentage of users with ads and data, they feel like they won.
Anything that doesn't conform neatly to their views is bias. My parents were like that when I was growing up; Rush Limbaugh and Focus on the Family all day on the radio, then my dad would watch the evening news and bitch about how biased it was. Completely nuts.