My take on it is that there's no big conspiracy with WB pulling the strings for the sake of being evil. I think it's just a lot of the realities of doing what they're doing. The release timelines probably reflect the fact that this stuff takes development time and they're trying to make that sustainable and realistic. Consumers think two months is a long time, but in the software world, when you take competing priorities into account like paying off technical debt, ancillary features to support the main feature, developers taking time off, and whatever QA means for that piece of software, two months goes by in a blink. I'm sure if WB could get away with releasing characters every week and players kept paying for them, they'd be onboard for that. No one wants these coming out every two months, but that's the reality of how long it takes.
With this franchise, there's other stuff too. It's a big controversy with the Ash vs Joker thing, but it's pretty likely there's stuff with Bruce's contract that makes this stickier than they were expecting, or impossible. Sometimes stuff just falls through and it's not solely for the purpose of screwing customers.
Yes, WB is primarily concerned with making money, and some stuff that feels "smarmy" to people like film tie-ins are definitely for marketing purposes, but there's a middle ground here. Ultimately lots of people also are in this because they want to make a game they're proud of, and it's just a lot of different people working within the bounds of the realities of the business.
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