Only person I would say has gotten more boring this season is Bernard, because he went from being a character to a seasonal mystery box, at least for now.
Dolores is still compelling to me, even as a more villainous character. We witness her humanity in this episode through her reactions to her father and Teddy. Speaking of Teddy—he's becoming more interesting than ever, with his internal drives to protect Dolores and defeat Wyatt conflicting. If Dolores truly is still following Ford's directive, rather than her own sentience—which I'm not convinced of, mind you—will Teddy find sentience before her?
Maeve is still a clear protagonist, her story just hasn't revved up yet, although we did gain more evidence for Ghost Nation's motives through it. I'd bet
SweetNicole is correct about Elsie reprogramming their tribe to protect humans, perhaps making them immune to (Maeve's) voice commands in the process. It's almost assured, given Stubbs' ending last season, and his safe appearance in the two-weeks-later plotline this season. Can't wait to see Elsie come back, regardless.