Peter gives him a blank look. What about it is weird? "Yeah, you do. She deals with all that stuff. I --" he flaps a hand -- "delegate."

What, Gabriel, you think Peter has time for stuff like planning ahead? Half the time when he tries it, it turns out Lucy already had something scheduled for them to do. Surely that's the entire reason, not at all that he's afraid to try teleporting without her there to undo his mistakes.