No it's not. They are funny guys but their opinions on things are not worth much. Mainly because they have only the vaguest and shakiest grasp of the plot and characters.
I mean, I even agree with them about MGS4 being total garbage but these are not the guys to go to if you want legitimate criticism.

Also they did do X-2.
Tipping Forties - Let's Play Final Fantasy X-2

They are the guys I was talking about earlier.