Fall Damage have been longstanding opponents of Quick Time Events (note that's 3 words) in all their trappings. However to say this is in any way shape or form a major factor in Uncharted 2 is stretching the truth. The author can only remember 2 or 3 encounters that required QTE's of any kind. And even these were the most forgivable types of QTE's imaginable.
Update This article is a direct rebuttal of http://n4g.com/ps3/News-414252.aspx