It's inconsiderate to ask everyone else to wait 30 minutes for you to finish your cut scenes.

If you accept the queue while in a cut scene, you will be able to watch them after from the beginning, but if you remember how far you got you can just click through the text you already read.

Urth's Fount is supplied by Mentor Roulette, which can only be used by level 80 players that have met the battle requirements, so it can take a very long time if it even succeeds at all. You may experience the same problem with Minstrel's Ballad/Extreme trials and coils.