Two words: Your. Problem.
Guess what? This is my first MMO aswell. As in: my very first.
I spend the first two months crafting because I was so afraid to go into dungeons and play with other people. But that wasnt the fault or problem of the game - it was enterily on me.
I dont like guns, so guess what, I'll never buy and play a shooter!
A very important lesson you'll have to learn is that you wont always like everything and that you have to be okay with that.
If you dont take the offer of your friends to join you for content because you're to anxious about that, thats on you to overcome that - not on the game to change to fit your needs.
I'm not telling you to abandon any friends that wont join you for EX-primals - I'm simply saying: If you have the desire to do that content, it would be a good idea to look for other people who'd like to do the same and befriend them or create a linkshell to keep them close. Unless you have a weird policy of having only 10 friends and 30 acquaintances, it shouldnt be a problem to add people to that list, right?
(And if your friendslist is full, I can only advise that linkshell-thing again - 128 more slots and you can fill them to create a community of people who share intrests)
You have made it very clear here that all the problems you're having (and that you assume others are having too) stem from one problem and thats your attitude towards the game and the choices you've made. So before you consider that the game is broken and need to be fixed, take a moment for some insight and ask yourself "Did I created this problem?"
You've already changed your minds on queuing for EX-primals in DF and found out that its better to create a PF-party for them - congratulations!
A lot of people in this thread have stated again and again that they're not having issues with the content - yet, its obviously the same content for everyone. So clearly they must be doing something right, that you're failing at - but guess what: If they/we are doing it, so can you! You're limiting and hurting only yourself, which is sad because the game has a lot of great content to offer. I wont force anyone to experience any of it - but everyone should be aware that they have to play by the contents rules, not the content by theirs.
Just because its not in PF doesnt mean that no one is doing it. And even if no one at all wants to do it - whats the problem? Because then the content just stays completly untouched and for all that we know it could be filled with butterflies by now.
If you are, however, on about "I want to do this, but no one is making a party for it!" again, I dont know what to tell you anymore...