It boils down to "Everyone else is doing it, so why can't we?".
First of all, that attitude shares a line with a Cranberries album, and they sucked.
Joking apart, it is a compelling argument. It's also a tad cynical. It would be like U2 saying "Well, the Cranberries (just to close the loop - ed) have that whole Irish/Spiritual demographic all wrapped up, and they're much younger, so we'll just stop." This may not have been a bad idea, though...
Yes, we do put an expectation on athletes to be superhuman, and we also expect records to fall to the point where we wilfully ignore the fact that, oh I dunno, a pool was designed with different standards to other pools so that athletes could swim faster *CoughPHELPSCough*, or that someone was able to be at the death's door and come back and be even better and more litigious than he was before (I don't wear any bracelets of any color because of this). Having said that, I don't consider those records tainted: there is more to cycling, swimming, and baseball than brute strength.
But at the same time, we also expect athletes to be like anyone else who has devoted their life to their craft: single-minded and driven to achieve on their own merits. Sure, The Edge could have gotten the same sound by playing one chord and looping it and then going for a Guinness, but he didn't. (Well, maybe on Pop, but that ended in tears). Dan Brown's books are written to such a restrictive formula that they could be composed using a mail merge. Sampling in hip-hop used to be subtle, an homage if you will. Now Diddy, Flo Rida, and numerous others rap over an existing song. Hillary Duff (how in the heck did I get here?) has taken "Personal Jesus" and just had the chorus rewritten so that it's "Reach out and touch me", removing the context of the song and reducing it to just a hook.
Why am I comparing pulp/pop to athlete's using performance enhancing drugs? Because both are expressions of a person's development of their talent or natural ability. Achieving anything is a test of a man's or woman's ability to invest the time and energy to the development of their skill.
So how does this preclude using performance-enhancing drugs? For the simple reason that we, as humans, tend to not trust shortcuts. Hillary Duff simply using "Personal Jesus" as a backing track to her song doesn't mean she's not a good singer, but it does mean that we really can't take her achievements seriously. Dan Brown still has to come up with a compelling plot and tension so that people will keep turning the pages of his books, but they'll never really be seen beyond pulp so long as he sticks to his formula. At the risk of going all Ayn Rand here, we expect our athletes, our artists, our engineers, anyone to excel in their field because of a natural talent developed through will and training, which in turn impresses us and inspires us to do the same. Maybe I'm more Salieri: I want the success of Alex Rodriguez to be g-d mocking me, and not the result of an injection that I could have taken as well.
Is this naive? Yes, yes it is. Will publishing this on every lamppost in the world change attitudes, no. Is it too much to expect? I hope not. But like I said when I started, I think it's just a matter of time until we get to a place where performance enhancing drugs in sports are de rigeur, and we'll get used to it and wonder how it could have been any other way before, like sampling. Even this, it will never take away the memories I have of Pete Rose getting where he did as a player by sheer force of will.
Don wrote a great article, but he missed the strongest point: If the Nationals did buy performance-enhancing drugs then they should be permitted in sport as they obviously have no impact on the outcome of the game.