There may be such a bias. But the question from our point of view is which exerts the stronger gravitational pull: details of how such bias affects this analysis? or a generic political flamewar about "entitlements"? Since the latter topic has far more mass and charge, it's going to win every time. Does that make sense?
The dynamics of introducing hot controversies into a discussion are predictable. If a comment is to avoid having that effect, it needs to include information specific to the topic at hand and eliminate any traces of flamebait.
In this case it doesn't seem to be a generic political tangent, but specifically addressing what appears to be bias in the report.
I found the post informative and adding context, but then, I'm probably politically aligned with the GP. Which certainly colors my view. :)