On the contrary, the audio is horrible (Yes, I've heard it). Movie screens are perforated to permit "screen speakers" to be positioned directly behind the screen. LED screens do not allow such positioning. The center channel (i.e. where most dialog emanates) is positioned above the top of the screen. This has the effect of disassociating the voice from the speaker and breaking the suspension of disbelief.
I doubt this will break the suspension of disbelief that easily. People have no problem listening to Movies on crappy stereo or mono on their laptop's display speakers or using crappy 3.5mm earplugs (sometimes with only one plug in the ears).