>>1739804well, yes, that's correct; if your hypothetical 'historic k-mart' had been on the National Register of Historic Places, as the station was - i.e. recognised as belonging to one of these criteria - then i'm sure you'd agree that demolishing it would indeed be a sin.
a quick browse through the station's wikipedia suggests a bait-and-switch where the station was supposed to be turned into a transit center, but was then about-faced and demolished virtually overnight. welp what's done is done, no use crying over spilled milk, thoughts and prayers, now about that real estate...