I've always loved how the narrative team writes The Winnower.
The Destiny community really wants to shoot them. And the writers are incredibly aware of how badly people want to shoot them, and also aware of how that's completely impossible and antithetical to the entire concept of The Winnower.
This particular conversation is extra delightful because The Winnower has this undercurrent of "lol. lmao, even." that comes through very clearly when they speak-- they reveal that the Nine have set up a "domino chain" that would culminate in the Guardian fighting The Winnower, and then they subsequently laugh the idea off. That's why they're so sarcastic and quippy and borderline cordial; because the whole idea of fighting them is stupid. It's a big joke to them. They're making fun of it as they talk about it.
The Winnower is part of The Game. It's a foundational rule, a concept that underpins all of reality, you can't kill it or prove it wrong because then The Game ends and everything in the universe dies. The Winnower is "bigger than you". No matter how hard you powerscale, no matter how high you set the stakes, the Winnower will always be "bigger than you" because it's half the universe itself. They're aware of their own immutability, and aware of how utterly ridiculous it is for the Nine to set up a domino chain to kill them.
Which is frankly a stroke of genius from the writers because it makes several points clear through behavior alone;
- You can't solve every problem with guns.
- Not everyone problem NEEDS to be solved with guns.
- The Nine are not omnipotent or all-powerful, they are as fallible as anything else.
- Guardians make their own fate.
People are pointing to this conversation as an indicator that the Final Showdown of the Fate saga would be against the Winnower, but I get the complete opposite reading from it-- that fighting the Winnower is dumb and our actual finale would've been defying the dominoes of the Nine to make our own destiny.