I think it is a very accurate and suitable term.
I friend of mine who is a cinema enthusiast (as in old movies, not the current breed of DSLR video hipsters) once chided me 25 years ago, when I said I was going to use my Betacam to "film" something. Back then, you at least had an excuse for saying "film", because some people were still shooting Super 8 film on a regular basis.
And here is a quote from the English Wikipedia article on videography (
http://en.wikipedia.org/wiki/Videography):
"The word combines "video" from Latin, meaning "I see" or "I apprehend", with the Greek terminal ending "graphy", meaning "to write". Its contemporary sense is rooted in an article titled "Videography" What Does It All Mean? (American Cinematographer, October 1972)" So the term has been around since at least 1972.
Cinematographer isn't an accurate term. I understand that many enthusiasts want to shoot in 24p for a "filmic" look, but most do not have any interest in creating an actual film, nor the resources/patience/skill to do so.