Party Finder has pros and cons. I do not like Party Finder culture a lot of reasons, and like it for others. Raid Finder would help remove the "someone is the party leader" factor and reduce the anxiety of participating, but it wouldn't help with most of the problems.

People could still leave, not be very good, play around with markers for ages, run out of time to play due to real life, you're not playing with a consistent party like you do in a static so your progress resets, and so on. It also could add new problems like being at a different phase than everyone else.

The reason we started using Party Finder goes back to Heavensward. Back then, we had no cross-world Party Finder, so we DID use Raid Finder. An average tank in there did not know what a tank swap was. I'd queue into Sophia Extreme and wait for the tank to swap off me and they... didn't. Not a single tank hardly ever did this. It was hopeless. It was one of the first mechanics and none of the tanks were any good at the most basic function of their job, tank busters.

The absolute most casual, most new tanks, that had probably just started tanking moments before they queued, would enter it as if it was casual content, and had no idea what they were doing. And didn't learn as the pulls went on. Let alone know what mitigation was.

So once we got cross-world Party Finder, people began to migrate to it, for obvious reasons. The casual players that have no clue what they are doing would not be brave enough to join a party they can be kicked from and troll it by having not done the most basic research or preparation on how to play their job ie. enough to press "Provoke" so the party can progress.

They did still use Raid Finder for Zurvan but there is a meme some players will have heard from back then of "skip soar" which seemed to finally push everyone else to PF.