I'd wait until the clones are established before feeding them, but then, yes, it's fine.
I never have light burn problems because the key is the 'MIST LIGHTLY' part of the instructions. The dish soap acts as a surfactant and breaks up droplets, and you should use the finest possible mist, and apply VERY lightly, let dry, wait a day, apply again, watch for improvement. Follow? I always urge restraint in feeding because it's easier to fix hungry plants than burnt ones!