There's something I don't understand about Jonathan. I gave him the keys to keep safe from the artificial ones. How dare he throw the lines into the water. Anyone could find them there.
Now we march on eggshells, this little band of outsiders. Jonathan was closest to danger, so the sleep ray (though laden with disorienting side effects) was necessary in the short term. But he knew he was chosen to be there. He was given responsibilities. He shirked those.