You don’t choose who you invite in party finder. You just open the group and people join it. You put in the description of the group that it’s a savage prog/clear group, then yes, it’s trolling to join it without the intention of doing the basic things that the game requires to prog/clear savage.
It’s optional content. And I’m not really talking about skill here. Mostly about not hearing advice when it is given when it comes to easy to fix mistakes.