Well I remember about 6 (?) months ago when the EX primals came out and I remember eventually getting through the fights and downing them several times for the weapons.

Now ninja is upcoming in the future so I decided I would trip through them again to just get some tokens so I have an instant i90 lv50 weapon for when I have it levelled up. Even as a i99 with huge amounts of echo im seeing parties struggle to even do the simplest things. It has clearly deteriorated to the point where people actually need to rely on echo to just clear things like killing feathers or nails.

This doesn't specifically apply to party finder as duty finder is just as much to blame for my bad experiences as I have always had issues with "farm" parties especially when levi and mog came out and all these farm parties couldn't even clear half the fight reliably.

But I must say when you don't meet a bad egg and make some decent progress on the fights people generally tend to friend list each other to try and sort it out later.