I am trying to think of a word used to describe someone who is intentionally oversimplifying an argument by making a statement that is technically true, but ignores a lot of issues. Its an adjective similar to describing the person as being intentionally obtuse or too clever for their own good.
Are you looking for "disingenuous?"
Another take on this could be "reductive"?
I might go with "glib" as a synonym for "superficial." However, neither of those are really about being too clever.
When I think of "too clever," I think of "cocky" of "flip."
Shallow, superficial, or facile:
From WordNet (r) 3.0 (2006) [wn]:
adj 1: arrived at without due care or effort; lacking depth;
"too facile a solution for so complex a problem"