One good aspect of our system is that it's easy to join parties and complete tasks, without needing to have extensive social discourse.
But that is precisely what killed socialization and community building in MMORPG to begin with.
It´s not that people back in the late 90´s or early 00´s were more social or less introverted than they are today, it just happened to be that socialization and community building was basically a requirement to get anywhere and progress, so people engaged in it and it happened naturally and organically.
The second MMO began offering party finders and soloable content together with this current hyperfocus on "Guilds" was the day the socialization and community building died.
Of course i am not blaming PSO2 for it, after all, hundreds of other MMO adopted this style way before PSO2 was even conceived, so by all means, PSO2 is hardly the game to blame for it.
But i am not sure if it´s cause for celebration, to be honest.
A bunch of silly and projected assumptions.
A bunch of effortless complaining and self-entitlement.
The only fact is the people not willing to put in the effort to find a group to be with are the ones, like you, complaning. The path of socialization exists the same but you refuse to understand that not everyone wants to follow it. Refusing to adapt to the times and seek out others of a like minded is outright willful ignorance.
Everyone is allowed to play how they want. That includes you and wanting to being more social in a pug setting. But that does not give you the right to stomp on people who don't wish to reply all the time. Getting upset that others don't want to basic socalize but rather just play the game is childish. You don't need your hand held, you don't need everyone to respond to you every time. In some cases, like x-box players, they might not have a keyboard to do a quick responce or don't have chat macros setup as it's not important to them.
Again if you want a social setting and people to talk to, go seek others with the same mindset out. Don't expect others to come to you for your wants and needs. This is how reality outside of the game works as well. You have interest in a hobby then you seek out groups or gathering places for it. The problem isn't others, it's you. Put in the effort to find a group of people you like to socialize with and you'll be far happier as you will of found what you seek.