Quote Originally Posted by Arrius View Post
But we can form parties, so that was a thing thrown out of the window at the very start. Forming, as in making or joining existing parties.

So I can assume SE didn't give the text a proper proofreading and didn't clarify this properly by limiting it to Duty Parties, since I assume 'Duty' is whatever is present in the Duty Finder tab without changing the settings (undersized, minimum IL).
The text says “Not Suitable for Party Content” — it says nothing about forming parties or joining parties, just that they aren’t suitable for party content.

There are several different inferences that can be made about the statement: the one I personally made was that it would be unable to fit into the regular party content due to being difficult to balance. In other words, I interpreted it as the job would actually be a bit overpowered, but it ends up being the opposite. Adding to the advertisement of it being a Solo Job, I also inferred it would have decent soloing capabilities outside of just the Masked Carnivale and overworld mobs, but its solo sustain for content near or at its level is fairly weak.