There were actually people who gave Firefly a chance and then dropped it after a few episodes, also. I was one of those people. I'll admit now it's good, but in retrospect "The Train Job" was not an auspicious start to the series. "Serenity" would have been a far better opening episode and one wonders what would have happened if that had been the case.
In hindsight, I think a lot of people would agree with you, I personally was able to watch the series in the
intended order (Meaning "Serenity" "The Train Job" etc...), and I cannot fathom how the show could have been received in watching it in the order FOX released it (with TTJ being released first because it was actiony, or whatever). This is likely what some of the 'up in arms' point is, I agree that people can be a bit...extreme, but this show held promise, and didn't get a proper shake (say what you want, but it didn't get it). I wonder if this is why Joss made
Dollhouse in such a way, that save for a few cases, the episodes could be switched around and make no difference?
I guess I never really 'answered' the quote, but from my POV, "The Train Job" however good of an episode it was (Come on...the line 'time for some thrillin' heroics' while looking to Kaylee was just funny), it just didn't ring to me as a pilot of any sort (especially considering how further episodes that actually aired referenced to the true pilot...). I suppose this is a curse in serialized programing, especially when a network is interested in airing ratings grabbers first (though maybe, one could make the pilot actiony or something, I don't know...).