Have you SEEN the Discontinued Attractions thread? Any of the multiple threads regarding the...gasp...continued lack of a Country Bear Jamboree Christmas Show? The refurb or crane threads? If not, don't. The petty whining is off the charts.
Everyone has their own opinions on these things. I think Horizons and audio animatronic dark rides in general, are kind of stale. They are absolutely state of the 1975 art. I enjoyed Horizons when I rode it, but I don't miss it. I enjoy SSE. I ride Living With The Land everytime I go...my wife and I enjoy it. And when it is no doubt replaced with the climates of the world roller coaster (you race along from extreme heats of the deserts, to the rainforests, to the polar icecaps where you loop the poles...you KNOW that would be sweet) the hardcore(s) will be up in arms while the lines snake around the building. There are actually people that are excited about a new version of "Tomorrow's Child" for the refurbed SSE. Sure, it's timeless...timelessly dull. Nothing special. Disney recognizes the fact that you have to appeal to a different audience and that is what they are trying to do.
Progress is a good thing. And outside of a small group of people, a sliver of Disney's park attendance, does anyone really miss Horizons, SeaBase Alpha, Dreamfinder, Captain EO? Probably not.
P.S. I AM glad that the wand is down. I hated that thing! I'm petty in my own way