I think you're forgetting a rather important factor; power dynamics. When it first started up, Phase was an unknown company with no prospects of success in a sea of other unknown companies with no prospects. When talents became successful in spite of Sakana's efforts, they and their fanbases were able to tell him to shut up and sit down, as failing to listen to them would ruin the company while not hurting the talents in any significant way.
His choices were to either listen to his own ego and destroy Phase Connect, or give in and let the talents continue making him a success. Now since Sakana is obviously a good businessman who doesn't put his ego ahead of the objectively profitable course of action, he chose the sensible course.
Now however, the power dynamic is the other way around. Sakana has connections and power that he simply didn't have at the start of Phase Connect. He doesn't need to listen to the talents anymore to be profitable or successful. I am not saying he doesn't listen, but I am saying that from a pragmatic viewpoint, it is no longer a major business concern of his. Nowadays, the talents need to fear displeasing Sakana's wishes vastly more than Sakana needs to fear displeasing the wishes of his talents. Phase is now big enough that any two or three big names could leave and the company would still be perfectly viable.
To put it simply, I don't buy into the idea that the early dynamic that catapulted Phase to success remains the status quo. I also think that there are many pragmatic reasons to maintain the image that it is still the dynamic. Sakana is a Chinese businessman with a great deal of power and money. It is extremely beneficial for him to hide and obfuscate these facts behind a persona that paints him as a lovably ineffectual goofball who sleeps in a dog basket and lets tiny menhera women yell at him while he thinks about coffee.
