I didn’t see the special, but based on the list, there were quite a number of films that were dropped that should’ve been: Amadeus, American in Paris, Dances, Zhivago, Giant, Fair Lady, Patton are all cases where bigger isn’t always better. Are they bad? Not necessarily, but also not deserving a place in any American Top 100.
Some drops were obviously because they’re seen as milestones (Birth of a Nation, Jazz Singer, Frankenstein) and not necessarily admired on their own merits. The Griffith in particular remains revolutionary, but I can’t gripe because they threw in another Griffith to replace it, plus 2 more silents as well (making the grand total 4–still way too low)
The Third Man got bumped because it’s not American. Glad they fixed that.
Some of the new additions are richly deserving. Now there’s space for Buster Keaton, Fred & Ginger, Preston Sturges, F.W. Murnau, Spike Lee, and Pixar (plus 2 now for the Marx Bros & Robert Altman). Other additions (Nashville, Picture Show, President’s Men, Cabaret) may all tip things a little too heavily toward the 70s–20% of the total!–but they’re all good films. And if you have to pick a message film with Sidney Poitier from '67, better Heat than the awful Dinner.
But some additions are bad or at least wholly unnecessary. Titanic, Sophie’s Choice and The Sixth Sense over All Quiet, Rebel and From Here to Eternity?!? They’re not remotely in the same league. Close Encounters remains better than Private Ryan, and if you’re going to add a 4th Kubrick, why pick Spartacus over Paths of Glory? And the inclusions of Gump and Rocky (jumping 21 places!) remain laughable.
So overall, the list is admittedly better and slightly more balanced, but any American “Best” that still neglects Night of the Hunter, Greed, Nick Ray, Douglas Sirk, & Ernst Lubitsch (just for starters) is incredibly problematic.