Honestly with all of this, I would just settle for a popup saying something along the lines of "The duty or duties you have entered the queue for are of a much higher level of difficulty than those you have completed before, it is recommended that you use the Party Finder to form a group to challenge this duty."

In the last 2 days, I've gotten 4 extremes, and of those, only one party cleared: a party with a non-sprout and 3 mentors in Rathalos EX. I hard carried one of the parties through ~80% of Ramuh EX, and the other two groups, both Ifrit EX, I left because people were ignoring mechanics explanations, and ignoring me when I advised them on their major mistakes on their job.