You wrote:
"Blyleven ... was never considered dominant."
Uh, 242 complete games says he was dominant at least 242 times. Blyleven was never considered an average pitcher by anyone in baseball. He was considered an extremely dangerous rival and, at times, unhittable.
Enough with the revisionist history. Try to remember how you felt about going against Blyleven with a series on the line or a chance to make the playoffs.
If anything you said about Blyleven was true, then why did he make only 2 All-Star teams, and why was he on 5 different teams throughout his career (distinguished from some like Steve Carlton, who was on several teams at the end of his career when he was trying to hang on)? Blyleven was never considered to be one of the top 10 pitchers at any time during his career. Winning 15-16 games a year for 20 years does not make one a dominent pitcher, nor does completing all of those games (which means either he had a lousy bullpen or a dopey manager).