If you want a sober and thorough analysis then using a single source is a bad idea. This does not involve feelings, in fact, quite the opposite.

If you want my feelings, then yes, I do think it's chilling that people can satisfy themselves that a few select videos from a foreign area is enough intelligence to make a decision about war.

If you've never had the pleasure of working in a war zone after the troops have left then I think you should ponder the consequences of your analysis a little more deeply.