This isn't an argument against spending, it's pointing out that "it must be nice to be a Dodgers fan!" isn't necessarily true, as they have their own complaints.
tl;dr every fanbase is full of doom boner-ists
Cubs fans: "It must be nice to be in a big market and spending to get a winner"
Dodgers fans: "Our stupid owners spend money like it grows on trees and what do we have to show for it?"
Grass is always greener, etc.