While the finale was rushed (due to covid), I don't think it negates nuance or any of the great things about the show that came before it.
Yeah but Wanda wasn't trying to enslave or destroy anything. Like most mutants, her powers are unpredicable and chained to the flux of human emotion. The creator of the sentinals didn't necesserily want to take over the world, he just wanted a big enough gun to be able to stop a mutant level threat and felt like his solution was best, we know how that ends up.
Like I said, logical but being that this is all inspired by social justice, it's just as logical for the government to use drones and military grade weapons against the population to stave off revolution...as it is for the oppressed to want to violently revolt.
The message I got from the show was to process your grief and loss before it consumes you and causes you to harm others others unconciously.
As for the bold, that bit in particular is foundtational to how the X-men will be percieved as opposed to The Avengers, something I've had to point up frequently in similar topics for people. some mutants have the powers to do such things and are going to be met with internment camps, experimentation, xenophobia and offensive action all while largely weilding powers they didn't ask for or may not fully understand, just like big red.