I guess it just depends on your point of view. I would have found a sentence lauding the railroads and the mechanized opening of the West to be pretty 'cringe' if they had not mentioned this.
But hey, I also don't think observing the basic fact that the railroads led to the "opening of the west" would qualify as "lauding" that fact, any more than observing that "George Washington was the first US president" would be "lauding" George Washington. For that matter, I can also enjoy a train ride without feeling the urge to "acknowledge" that Cornelius Vanderbilt did some bad things.
(...though I sadly acknowledge that we're well 'round that bend as a society)