I'm a big fan of Haejin-nim's work, after the end of season 1 I was really looking forward to season 2. But I was quite disappointed with the storytelling. It's a shame that Eternal Covenant, a work that I really like, lost a lot of readers because of this...like...it could have been better, you know?
My point is... people are free to have opinions, whether you like season 2 or not is up to you. But don't be salty with people who have different opinions from you. as long as the opinion does not hurt anyone. and hey! You know what, criticism of a work is allowed as long as it is delivered politely and doesn't hurt the author's feelings!
I believe most of the people here actually don't mind the "slowburn" and political problems in season 2, since if you pay attention, that already happened in season 1. The problem is that the flashbacks are too sudden. This is what many people are disappointed with, it's a shame that even though season 1 was very good, season 2 feels a bit odd. It would be better if the flashback was delivered by Ian himself (for example, he gets a memory of his past, then we enter the flashback arc). So it's not surprising that many readers complain about season 2, it's something that can't be helped. Even the author should have seen it coming.