So the convoluted, almost totally improbable "Walt poisoned Brock*" theory turned out to be on target, but the payoff with Tio was so great it went a long way toward easing the sting of how they got there. I guess it almost evens out, although I really hope they go back to planning the final season's ending far in advance.
I think this kind of gets to where I stand on things. I really, really don't think Walt's plot stands up to any real scrutiny. And I don't just mean Huell's secret Ricky Jay superskills or Walt getting Brock to eat the berries or other things that had to happen (mostly) offscreen because they couldn't hammer out the details. I mean the very idea that Walt sees Brock for the first time (am I forgetting an earlier scene?) when showing up at Jesse's house in a panic and just seconds before being tazed multiple times and led out into the desert for a possible death. And somehow he remembers that two seconds of seeing a kid at Jesse's house and comes up with "Jesse must love whoever that hell that kid was so much that if I could only find a way to use him as the lynchpin to convince him to blame me for something and then convince him to blame Gus instead before he kills me for...hey, is that poisonous plant in my backyard?"
It's just a weird, convoluted series of logic jumps that uncomfortably stacks up on top of Gus' similarly weird plan from earlier in the season (that drove the wedge between Walt and Jesse that required
this weird plan), with the odd Ted Beneke shennanigans in between. They should have put some more of the plot wheels in motion in those first few character-heavy/plot-light episodes at the start to give them room to dig that hole and then crawl out of it. And because of all that, I don't think this season was as strong as Season 3.
Buuuuuut, as spectacle and entertainment, that finale and a good solid chunk of this season were phenomenal television, without question. I think the bit with Gus walking out and straightening his tie like some kind of T-800-by-way-of-Chuck-Jones was their way of acknowledging "Yeah, you know what, Gus just DOES have Spidey-sense, because Spidey-sense is cool and everyone knows that in their hearts" and THAT SHOT of him immediately after is going to go down as TV legend.
Add onto that Paul stepping up in a major way and carrying most of the season, Esposito embracing S4 Gus and playing him to perfection and Cranston being allowed to re-emerge as Bryan Cranston: TV's Finest Actor in the final few episodes, and I'm happy to accept it for what it was: amazing, entertaining television. We're still in a TV golden age.
*I think it's safe to say this is the most dramatic tension and handwringing that's ever been expended on someone named "Brock."
Brock Samson and Brock Lesnar can only shake their heads in disappointment at you. Eh, maybe not Brock Lesnar, I'm not sure he has a neck.