Id assume ENFp's would be sort of pickyish at least. Forseeing problems and always seeing potential in other partners can make ENFp's not only picky but also fickle. Problem I guess is with the description of the word "picky", im not sure what it implies, because I'd say ENFp's would be very picky with choosing someone to be with for life but not so much to start a relationship with, after all it takes a bit of time to see how the relationship would evolve in the future and you start with 0 knowledge about a person.