Nothing I haven't seen before. I remember the DS9 days. Trying to remember what someone said, because it's been over 20 years... This is what they said, circa 1996 (my first year online)...
"Season 1 and 2: We're about the Bajorans, the Cardassians, the Maquis, and bringing Bajor into the Federation."
"Season 3: No we're not! We're about the Dominion and Shape-Shifters!"
"Season 4: No we're not! We're about Worf and war with the Klingons!"
I can just picture the same people who had a problem with DSC S1 having a problem with DS9 S4, with its focus on the Klingons. I remember people either loved DS9 Season 4, didn't like it because it "completely shifted focus" away from the first two seasons, or hated it because it wasn't Gene's Vision. Good thing the Dominion War hadn't happened yet!
Typing this post just made me feel old.