Yes - It's a "casual" alternative to raiding to get sands/oils... but you have to raid in a party too.
If you happened to come across a hunt monster first, you couldn't solo it - they are build around having a full party to kill it. Just because there are other parties already there doesn't mean you still shouldn't be in a party.

It's not hard to shout and get in one either - takes 2 seconds, and you can do it when you're zoning in before the loading finishes. Usually my screen is still black when I request party, and by the time I see things, I have a party invite waiting.

Just because something is easy to get, doesn't mean you shouldn't still have to put effort into it.