It's not that Norm uses power tools.  There's nothing wrong with that.
It's that he presents himself as a Do It Yourself show in which the viewer
is encouraged to work along.    A real DIY (and many craftsmen too) has
only a limited set of tools and he must solve problems by skill, ingenuity
and carefull choice of construction techniques.  This kind of
resourcefulness is a very important part of craftsmanship.  However, Norm
hardly ever does this -  every technical problem is solved by an expensive
piece of specialist machinery.

I think the underlying problem is that Norm is really a construction
carpenter.  When building a house, the investment is so large and the labor
costs are so high that it almost always makes sense to go out and by a $500
power tool just to solve a particular problem.  I think too that this is
the reason for the ugly construction methods that Norm uses.

Adam