That's a bold claim. I for one, welcome the oil changes, and I'm sure I'm not alone, content people just tend to not voice their opinions. I didn't until now for instance. You're still forced to use advanced oil processing, so nothing meaningful was removed from the game, just moved later. Plenty of people hit a brick wall around blue science and give up, not because it's too difficult to do, but because it's no longer fun.But you should understand that you have left a vast majority of your most loyal community
In mods that are universally regarded as more complex and difficult than vanilla, such as AngelBob's and Pyanodon's, there's always something you can use to void/dump waste products, which essentially eliminates (instead of delaying, as happened in vanilla) this kind of challenge. I don't think anyone would claim that Angel's PetroChem is easier than vanilla Advanced Oil for this reason though.