The theming, audio, and visuals are all really good. There's something satisfying about watching a chaotic horde yipping and dogpiling a soccerball.
That said, I never felt particularly in control. I liked the idea of choosing how to position your dogs at the beginning of the match, but after the match starts it pretty much immediately descends into chaos without any further input. Having a dog you directly control or having the ability to give your dogs loose guiance in the middle of the game would have helped a lot.
I ran into a couple bugs that made me wonder if this game was secretly a creepy pasta. At one point the match ended, only for the teams start alternating about 15 rounds of penalty kicks, and sometimes dogs would ragdoll in ways that would cause their limbs to freak out a bit.
This didn't feel particularly sequel-y to me, since it's going directly from "one dog is good at sports" to "only dogs play sports now". Having it be about an all-dog team playing against all-human teams might have contexualized it a bit better as a sequel to a sports dog movie.