Not only that, but these kids are getting advice from each of these guests and it may be too much info and advice in too short a time. They may be getting overload. Too much in too short a time can be bad if they try to use it all without perfecting one before moving on to the next. jmo
You have a good point. If I were in the contestants position, it would make my head spin. Especially if some of the advice was contradictory.