I don't understand a bit. At first everyone is happy that the anime broke a few rules, but less focus on Satoshi is a sin. Is it really that bad? After all, he has not given up his goal, he continues to pursue it
The answer to this question, to me at least, is Ash is the main character, period. His goal should be what is primarily carrying the narrative. The PWC needs better fleshing out and focus.
Goh's goals are superfluous, they are like Brock's goal of becoming a Pokemon Breeder. Oh catching all Pokemon, is an unachievable goal, in any fleshed out sense, 8 generations into the franchise. That type of goal would have made sense back in Gen 2, or Gen 3, but that's pushing it. Now it's just a trope of the past. And his secondary goal of catching Mew, what happens next, does he all of a sudden fixate on a new goal Mythical Pokemon.
The writers took a risk by breaking away from Ash's typical regional journey, and instead of putting together a consistent narrative with clear outlined goals that are routinely focused on, it's just a sporadic unfocused mess.
And often the main character's goal feel like they are forced to take a back seat to Goh's 2 goals, neither of which have any real sense of having a real meaningful "accomplishment".
Not everything about Goh is bad, so don't mistake my above opinions as outright being anti Goh. His dynamic with Scorbunny and it's evolutions was great in my opinion. Him getting Grookey would have sat better with me if Ash had gotten Sobble, that was a blatant oopsie decision by the writers. His goals though hold no real meaningful weight, as opposed to Ash's goals, and that's my primary issue.