You people make it sound like it's impossible for any player in the modern age to be considered one of the best and that the likes of Ponting, Tendulkar & Lara are a bunch of jokers because they played in better conditions.
If all of you said was actually true then Bradman was actually Superman, with superpowers that enabled him to see the ball coming at him in "slow-motion" and he actually knew what ball the bowler was going to bowl because he could see into the future, which is why it was almost impossible to dislodge him and that if Bradman didn't make a 100 in a particular innings then it was assumed that he was bored and wanted to give the opposition a chance at winning for the sake of competition.
The reason Bradman made a duck in his last innings is because he indeed had tears in his eyes from getting applauded onto the ground by the opposition and that tears generated from his eyes drooled into the machine known as Don Bradman and disabled him from using his "superpowers" in his last innings. This was widely considered one of the best plots in the history of cricket and it overshadowed Douglus Jardine's "Bodyline" theory.
Why it took so long to figure this out is not known but it is mainly the reason why opposition teams do it to retiring players (even the not so great players) who are retiring at the end of the match in hope that they underperform in their last innings of International cricket.