In that limited way I would agree.
If however, you kept leveling them to, say 20, then its just powerleveling them.
( realize if this was an alt of a higher level character, then we all do that )
Training them, buy showing them where resources are, how to use machines and what items to make... IS the best teaching technique.
I even will freely make a full set of adventure armor for someone just starting out, so that they can gather a bit of resources, and can be better prepared to gather their own resources later.
I can make triple teched Mithril ring/scale and would go broke trying to make money from armor. I make it for fun. I sell bars and crafted items to the PB for money. I never have any problems making money. Never have. My wife made well over 500s just making bronze weapons and armors and selling to the PB.
Give a player a sword and armor and you help him for today. Teach him how to do it for himself, and you help him forever. ( AND they will be around longer )
*switches into implementation mode*