Dungeons? No, I still holy spam and put hots on the tank.

So far in EX primals, yes I have had a very hard time finding room to DPS outside of a few aero II/III and some stone IV. I can't say I have ever had an "extended period of no damage" going out that I felt was needed for me to DPS.

Susano EX does not require an INSANE amount of healing, but there are plenty of places whm can rotate medica/cure III around (more often then not really) Also, you are constantly moving, like you don't stop moving. Ever.