It cannot be denied. TV is where it is at. TV is where Matthew McConaughey became awesome again. TV is for The Wire, for Deadwood, for Mad Men, for Breaking Bad. TV, at this point in time, is absolutely slaughtering cinema in terms of quality content, so why should we be surprised when The Flash gets a TV show instead of a movie? We shouldn't be surprised at all.
What we have here is five minutes of the upcoming show based on The Flash and it... doesn't look terrible. I'm sure it will be corny, I'm sure it will have terrible dialogue, but no-one's expecting True Detective here, they're expecting Arrow, Smallville, Buffy. They're expecting that kind of entertainment. I think we'll get it.