@Ilúvatar "Some classes have a very difficult time with this requirement." - I don't know about that. Since the current expert requirements have been implemented, we've gained hugely powerful tiers of gear (and even gained a new difficulty level, Ultra Hard) - so being tasked with clearing two Extra Hard quests, with even baseline15* weapons (which were recently buffed, I might add) isn't exceptionally difficult provided you have a grasp of your class's invincibility/guard frames and understand which situations to use your various offensive options in.
And, well, at the end of the day it's entirely optional. You can just not get expert, and you are still able to queue up for all of the same content, just in non-expert queue.
Most importantly, you don't actually expect Sega JP (who's clearly running the show on PSO2 NA) to create a new party finder system unique to the NA release, right? This game has been out for 8 years and they've not created such a thing yet, I'm quite doubtful they would choose to do so now.