I listen to a lot of live acoustic material,and my HIFI can reproduce that easier that full orchestral pieces,because my gear isn't good enough.The complexities of big pieces need big gear imo,I've only ever really enjoyed this music at shows or in dem rooms with gear considerably better than mine.
So no,we aren't deluded,unless you listen at home to predominantly acoustic material,as i do.So match your gear to your tastes would be my view.Its why I do'nt get on with BW,to much cloured bass at my budget.