Any forum for anything will have people complaining about the thing the forum is for. It's what people do, complain about things they don't like. Here, reddit, any fansites that may exist, what have you. Everyone enjoys doing different things, and in myriad ways.
You brought up a key point of contention that many have echoed, that it's nigh impossible to bring a friend with you into Eureka Pagos who happens to be a few levels below/ahead of you and reasonably gain a decent amount of exp for the time spent killing mobs. In Anemos, just bring 'em onto the train, and slowly they'll work their way up to being able to participate. Heck, if you have a healer leveled, you were almost always going to find an invite to a party in Anemos because at least you could rez people who died. You weren't going out of your way to do so, everyone was either at the NM, or moving from one NM spawn camp to the other. People were actively engaged with the content in a meaningful way regardless of their elvl (within reason, of course. Tanks/DPS weren't as lucky, but you could still get an invite most of the time). And as much as I've seen people berate the afk's for being afk, they sure weren't afraid to move when the NM spawned... and people were willing to get them there on time for even a silver participation.
You cannot do that in Pagos. Sure, there needed to be a paradigm shift in the playerbase of "this isn't going to be like Anemos was," and for the most part I believe there was. But a road goes both ways, and SE should have heeded the feedback of their, not just players, but their paying customers, to what expectations they had and how best to meet those expectations. Business 101, if people want a thing from you and you can't provide it, they'll go to wherever they can get it reasonably. SE dropped the ball with Pagos, and I'm going to opt to only go in when my schedule allows, and play it to the best that I can. I'm skeptical of what'll come down the road, seeing as how many people are upset by the decisions made by the dev team and how they'll address them given the dev teams track record. Hope for the best, expect the worst, and accept anything in-between... unless you choose not to and move on/do other things.
(An aside: I am tired of the whole "well I got X amount of things. It's deflective and diminutive to the point being made. We shouldn't be trying to push people down/away because they cant/couldn't commit to something the same level as we do, instead bringing them up to our level or making what was a chore for us easier for the people after us. But, that's the idealist in me speaking.)