nah ... its ok and you should take almost all the dirt off its no problem in breaking that tiny roots on the bottom of the pot but they will be fine non the less
When they recover and you give them a good vegetative they will be fine in flowering dont worry .
If they are feminized keep a close watch for hermie , it can happen due to stress.. the rest you will be fine ..
Light's can hit the roots with no problem .. just not for too long ..
Some growers even sprout their seeds in dirt and when they are about the size of yours , take it of the pots . wash the roots with water, until there's no dirt left and then put them in their hydro system and they do just fine.
You will see that next week you will be posting here pics , proud of your ladies.