Any plan to include extreme trials in the Raid Finder?

Finding groups for practice is always extremely difficult and it forces you to wait for hours in Party Finder before you get a full party.

Plus, usually the training session lasts no more than 3 tries because even if the description states "phase 3-4" or whatever, people join even when they have no experience at all...

I see that with the Raid Finder it's easier to get your weekly kill if you don't have a group, it would be so nice to be able to have this option for trials too!
Please make it happen, SE!