Oh there are. Like when one of those "The Dragon Thrashed" chanters gets dominated or something
My Chanter is usually my go-to guy for such emergencies because everyone else just seems to have something better to do. Wizards have their crowd control spells/nukes, Ciphers have their debuffs, priests have their buffs, warrior-types need to stand in the front and hit something, etc.
Chanters, on the other hand, are already doing their job just by being there/using their chants. Other actions are just a bonus, but because of how the game is set up (consumables, active items, LOTS of good weapons) you could do accomplish a lot with those bonus actions.
As an example, against dragons I prefer to have "With All Your Strength, Slay The Beast" so all the party's attacks crit. I pop a scroll of Prayer Against Fear for the back/mid row (priest takes care of front row), use Dominate (Ring of Changing Heart) on key targets (like the dragon), and while chaos ensues, casters are activating their accuracy buffs and everything just comes together with rows upon rows of crits seconds later. Another example is against those annoying Broodmothers and Ogre druids - it's my chanter who usually ends up spamming effects Suppress Affliction to mitigate the effects of their spells. Finally, Chanters can be downright nasty with the right gear/self-buffs and my Chanter can very easily switch to assassin mode with "Their Champion Braved the Horde Alone" and a dual-wield setup.
As for the healing, it depends. When you're relying on your Chanter for most of your Endurance recovery, then definitely. But you have other people with Endurance recovery abilities around, then meh.
BTW, it's one thing to say that your starting Might isn't a big deal and to say that Might (in general) is not important to a chanter. What I'm saying is the former, since I still end up with around 20+ might on my Chanter when fully buffed up.
Edited by scythesong, 12 August 2017 - 11:19 AM.