Multiple people are lying to you and should probably stop basing everything off of third hand stories they heard about a spaceship game that's built around being cutthroat in the first place.

Excal has probably the game's most efficient hunt system due to a combination of a public teamspeak server for coordination of the horde, and someone who has basically "cracked the code" on spawn timers (who is, funnily enough, a member of the FC that your sources are likely badmouthing) providing focus on where people should look. As far as I can tell the only people that aren't getting in on this system are those importing drama from getting wrecked in EVE or some random WoW prank from a decade ago, or FF11 Stockholm victims that think hunt marks should be claimable and the server-wide zerg should go away (because they think somehow that they'll get all the claims rather than the large FCs dominating the system via sheer numbers).

The teamspeak server address is ts.ffxiv.in
Join using your character name as a nick (or you'll be kicked from the TS) and wait to be invited to a party and "pulled down" from the lobby to where you can hear the coordinators. Make sure to "poke" quackbot at least once an hour or you'll be auto kicked from the TS (and have to be pulled down by your party leader again). Listen to the instructions from the coordinators, and note that there are designated pullers, and pull times are on the Eorzean clock (so when someone says pulling in 15 minutes, it's not time to go grab a snack).
If you can't get on teamspeak (note there are phone apps if you play on console), then shout inzone whenever the horde shows and hope for an invite. Much easier on everyone if you can figure out how to get on the TS though (note you only need to hear, so not having a mic isn't a setback).

That should be enough info to get you started, further questions can be answered by your party for the most part. Happy hunting and Please Be Careful.