This accident hasn't really affected my personal opinions of commercial spaceflight too much. Of course, what I think is irrelevant, and I fear that it will affect the opinions of people who matter to Virgin Galactic (namely their investors and customers). The fact that they are already 5 years behind schedule doesn't help here.
While privatised space travel may be revolutionary, it could not have happened without government organisations paving the way. As it stands, NASA willing to spend billions of dollars without the restrictions of profit motives allowed space travel to advance past the drawing board. I posit that while private space travel will one day be extremely lucrative, it will remain mostly in the early stages of sub-space orbit until NASA makes progress as it did in the 50s-60s.