This line from an online article strikes me as strange for its use of the phrase much of.
Owens was known for being a malcontent during his NFL career, which is much of the stated reason why Hall of Fame voters made him wait for his induction into Canton.
I thought much of is only used in negative sentences. The ODO's definition says:
[as pronoun, with negative] Used to refer disparagingly to someone or something as being a poor specimen.
Merriam Webster has a page on not much of a, and so do other dictionaries. I am quite familiar with the usage listed in the dictionaries. But the online article sentence reads jarring. Is it a correct usage?