Hi there
They definitely look like she need watering, using coco your going to need to water more frequently then soil, in the picture it looks quite dry,
Regarding a few small roots been exposed I can’t see that being the issue that happens to most people as long as it’s not a crazy amount ..
Give her a good water/feed until it’s dripping out the bottom of the pot then feel the weight of the pot ..
Also as their autos try not to defoliate too much unless it’s really needed/covering buds etc you don’t want to slow them down as they’re short life cycle.
Best of luck 🌱